After watching this, I went to eBay and bought an MRW200H and Microlubrol. I don't even really care if there's any actual improvement to the watch that I'll ever use, it's just fun to tinker and learn new skills. Cheers mate, should be a hoot.
For those wondering why you might do this, the Hydraulic Press channel stuck an oil filled 200m rated watch in the test chamber and took it to the equivalent of 3,000m and it survived. Most 200m rated watches can go deeper out the box, but only to around 600m before the glass cracks or the case back collapses under the pressure. An oil filled watch with an electromechanical movement will suffer a severe reduction of battery life, so an all digital model or solar powered movement might be the best way to go. A solar digital watch would probably be the most suited for this type of modification. Lacking any bubbles inside the case, the watch will suffer severe internal pressure changes with heating and cooling. This may cause seals to fail prematurely as fluids are essentially incompressible and that excess pressure has to be relieved somehow. An interesting idea that can greatly increase the depth rating of a watch but probably not something that is suitable for an everyday beater.
I have done this on two watches. Once on a quartz Casio Marlin and once on a Casio G-Shock ani-dig watch. Only do this mod on a fully digital watch. Even the thinnest silicon oil will add resistance enough to drain the battery on an analog quartz watch. On both of mine, with new batteries, they died in 6 weeks. After a thorough cleaning and fresh batteries, they worked fine. A full LCD would be great.
The MDV-106 doesn't "pop" because it's dial has very fine starburst etching that reflects light at all angles. It's really a cool watch for the price. Great job, bro. I'm confident to do my watches like that.
some times i did this procedure, i prefer to have more oil and a bigger container, where you can just move the watch pieces inside the oil in some directions, to send the bubbles out of the watch easier. Anyway, very good video! Thanks!
If you add more oil to a container so you can assemble the whole thing fully submerged you can never get a bubble of air. The results where surprising on the first watch! Really cool, wonder how the durability is affected by this :)
Thank you, Darak for this video. I think it's very helpful, and (as far as I know now), you do it quite properly. I already moded a Casio F-91 years ago, filling it with Olive Oil !. At the moment, still it's working quite fine. Visibility doesn't change as much as with analogics, but oil improves dramatically the submergibility of the watch. This just "water-resistant" Casio has gone diving with me down to 40 meters more than five times. And many more, a bit shallower. But now, I and a group of friends want to hydrolyze some analogic watches. First I decided to start with the MRW-200 that you fill here, because (as you say) the effect looks better than on the MDV-106. But after thinking about it, I'd rather prefer a watch like the Duro, with a screwed crown (even though a screwed-down case back is trickier to close than a case back with screws). I'm more confident about avoiding future oil leaks with a screed crown. Let's talk about the procedure. I like very much the box you used. I think it's the perfect size, and I hope to find something similar. I like also the way yo refill the leaking oil with the syringe. I guess that I will manage to close the screwed down back case properly (without leaving bubbles), and that I will set in position the crown, because I see that you close the case, before closing the crown. Is this to avoid excess pressure inside the watch, while you are closing the back, and let the oil leak through the crown's hole, in case of necessity? And finally, my biggest doubt: I don't see that you leave any bubble inside. The dial looks gorgeous in that way. But, aren't you afraid that with warmer temperatures, the oil expands inside the watch, and can cause problems (or leakings)?. In other oil modding I've seen that they leave bubbles (bigger or smaller), and (for instance) Sinn has patented a special piston for dealing with this issue. Tell me what you think about it. Maybe this oil doesn't expant¡d too much with the temperature changes. Finally, as I've seen in some other vídeos, I think that you are right with the density ot the oil. 50 cst seems t have the right amount. But I wonder why they don't use even less dense oils. If they keep the same conditions about conductivity, I don't see any problems to use them, and the hands would find less resistance in moving. Anyway, thank you for this vídeo, And I hope to read your answers.
Hi Boga92, thank you for your long and informative common, but you really should watch this video first, and we can discuss more, this is my follow-up video of the Hydro mod, ua-cam.com/video/UpYuMbbw4bk/v-deo.html
@@darakwatches467 I already saw the other video. But I find impossible fitting the styrofoam balls in place while closing the case back. Do you think it's possible to fill the case with silicone oil through the crown hole? Anyway. I think you didn't leave any bubble inside these two watches. How are they behaving? Any leak?
For the thermal expansion, perhaps the o-rings of the buttons provide enough flexibility. Would be interesting to calculate the change in size of the oil.
It might be the sun burst effect on the dial of that duro that makes it a little underwhelming, since it catches light differently under the different refractive index of the oil. Excellent video btw! Appreciate it
with Mine?..I made a "Rolex Submariner" style watch into a Oil filled to test it, it has a rubber O-Ring on the Crown shaft though not just a metal on metal seal... it seems to hold everything back OK when I change the time/date, I could imagine some air working its way into the case eventually with multiple changes...but so far?..it's held up ok!.
@@daalvares if you angle the watch correctly when changing Date/Time (crown pointing UP/High) then You should be OK for a FEW changes, eventually though?.. air would work its way into the case with Multiple changes, but that's a quick painless fix.. 10 mins every 6 months?.. MAX!
Glad to find you again - I’m still looking for a small bottle of Fluorinert 76 I think - but cheapest is about £50 for 500ml (way too much). As before, great vids BTW 👏👏👏👏👏
Watches look great man, I was reading that you can put the MRW200H dial/movement into the MDV106 body, maybe try that next so you get the look of the 200 in the Duro body, might be worth a video :D
Nice vid and it works great BUT it eats batteries. I've done a few of these and the battery has lasted as little as a year. I'm guessing because the motor is using a lot more torque.
So what happens now when you pull out the crown to adjust the time? Wouldn't the oil leak out? And you have to do this again when it is time to replace the battery?
I imagine pulling the crown out would create negative pressure that would suck a little air bubble in past the O-rings, then pushing the crown back in would either compress that bubble or push oil out.
Since those watches are electronic, time keeping element doesn’t rely on moving parts and isn’t affected by friction. Oil friction affects only moving parts that show time. If they are capable of doing their move within 1 second intervals, it should work with no problem.
Whow, no triple whow. Unfortunately i could'ot give that super positive comment on your DARAK Watches II channel. Therefore i do it here. Your video work is perfect, your comments reflecting your ambition , to do perfect work. It's perfect what you do. Of course subscribed. You got a new fan.
Very interesting, I would imagine doing so would make the watch more water proof in a way, right? Also won’t the oil cause friction and delay the whole watch by a bit over time? Also what happens when you change the battery? I’ll you need to have extra oil at hand to fill to avoid bubbles during battery changes, also would this work with a mechanical watch????
due to oil viscosity, how accurate the time will be? Kindly validate plssss im guessing it will be delayed few minutes per day due to added resistance of the movement?
@@MFRiley I suppose I mean "automatic", honestly I thought "automatic" and "mechanical" meant the same thing. My comment was meant to highlight that every digital watch has a battery. All digital watches (such as quartz) are going to have a battery and the battery life is affected by this technique. How fast it kills the battery, I'm not sure.
I´m not an expert either, yet i think you need a convex lens in order to get the full effect like the watch on this video. Also, looking for viscosity and interaction with materials might be the kind of oil your looking for. Secondly, experimenting with the refraction index of the oil, in relationship with the kind and thickness of glass you´re using might create a more desirable outcome
Don’t you need a high torque movement to compensate for the fluid density and avoid the gearing and step motor from wearing out prematurely? Also, when you adjust the time, does it leak?
Can one do this to a solar-powered watch? I ask because I don't think I'd like to do a do-over every time I need to replace the battery. If not, I'd recommend replacing the battery with a new one before doing the mod to make it last longer before the next reapplication of oil. Nice video and thanks! Thumbs up!
Great video, thanks for showing us how you did it. Did you oil fill the digital watch too? If so, can you press the buttons when submerged under water? Does the light still work?
As long as the watch is 100 METERS or greater water resistance it should be fine. Anything less does not have sealed buttons when they are depressed so the oil would just leak out.
Hello Darak, I was wondering can I use this silicone oil as a refill for my lubricating foam for watches? the ones inside the foam were liquid clear type silicone not the typical white ones.
I wonder if the movement of the Seconds Hand and the mechanical gears, while they move through the oil, would create enough drag to make it use up more battery power, and shorten the battery life?
I learned from other videos that the electric current draw of oil-filled mod is 3-4 times more than the original non-filled watch. This is due to the drag that the oil makes on the rotating parts, demanding more power from the quartz drive. So expect your batteries to run down faster, meaning, if the original watch will run for three years before it needs battery change, the oil-filled one will last only one year or less.
I'm curious to try pentane in a mechanical watch. it's still significantly more viscous than air, but only about 15 times more viscous rather than the 300 or so times the viscosity of the least viscous oils. it's also only about $35 for half a liter of the reagent grade stuff. I'm thinking it might be close enough that I can regulate it out and just live with not much power reserve. the only problem is I absolutely know it'll eat plastic parts and I'm not sure I'm willing to try it on anything that's got a metal movement holder.
Just did it to my F91W a hour ago ... There is some minus point of it. The light was low on F91W. Now its more weaker barely shows the minutes. And the beep sound become very low.
I wonder how the analogue models respond to the medium viscosity increase after oil filling. Do they become less accurate or does the battery life decrease after such a mod?
After watching this, I went to eBay and bought an MRW200H and Microlubrol. I don't even really care if there's any actual improvement to the watch that I'll ever use, it's just fun to tinker and learn new skills. Cheers mate, should be a hoot.
How was the watch now? :v
What skills did you learn?
ua-cam.com/video/6wPPUdLN6WM/v-deo.html - the MRW-200H, an Unexpected Favourite.
Does the watch still works ?
@@valmonta3647 Still ticking away.
For those wondering why you might do this, the Hydraulic Press channel stuck an oil filled 200m rated watch in the test chamber and took it to the equivalent of 3,000m and it survived. Most 200m rated watches can go deeper out the box, but only to around 600m before the glass cracks or the case back collapses under the pressure. An oil filled watch with an electromechanical movement will suffer a severe reduction of battery life, so an all digital model or solar powered movement might be the best way to go. A solar digital watch would probably be the most suited for this type of modification. Lacking any bubbles inside the case, the watch will suffer severe internal pressure changes with heating and cooling. This may cause seals to fail prematurely as fluids are essentially incompressible and that excess pressure has to be relieved somehow. An interesting idea that can greatly increase the depth rating of a watch but probably not something that is suitable for an everyday beater.
Nobody remotely thinking about diving to 3000m is thinking about buying this watch bro 😂
That's not the point
@@saadmaanshahrier2 Nobody diving to 200m is thinking about buying this watch either 🤣
And here we go..... Love the HPC!
Why not put a little foam block somewhere inside who's only purpose is to get compressed/decompressed?
I have done this on two watches. Once on a quartz Casio Marlin and once on a Casio G-Shock ani-dig watch. Only do this mod on a fully digital watch. Even the thinnest silicon oil will add resistance enough to drain the battery on an analog quartz watch. On both of mine, with new batteries, they died in 6 weeks. After a thorough cleaning and fresh batteries, they worked fine. A full LCD would be great.
wow, just six weeks?
This is by far the best and most informative video for oil filled watch mod. Excellent job.
Hi Ronnie, thanks.
I know ill never do this to any of my watches but this was very informational and would be a great video for anyone actually wanting to do it.
Good timing, I've just bought an MRW-200H and want to give this a go. Thanks!
I’d use a deeper container so the dial and case back can be rotated to get rid of bubbles. That’s use more oil of course.
submerge the opened watch in oil and put it in a vacuum chamber
The MDV-106 doesn't "pop" because it's dial has very fine starburst etching that reflects light at all angles. It's really a cool watch for the price. Great job, bro. I'm confident to do my watches like that.
Im glad you are back! You are one of the most unique channels on UA-cam.
Hi Rafe, thanks, and welcome back.
some times i did this procedure, i prefer to have more oil and a bigger container, where you can just move the watch pieces inside the oil in some directions, to send the bubbles out of the watch easier. Anyway, very good video! Thanks!
Thinking about doing this with my Casio A700! Love the extra contrast and decreased reflections.
Really cool, I have a vacuum pump and a small chamber. I'm going to try this with vacuum
If you add more oil to a container so you can assemble the whole thing fully submerged you can never get a bubble of air. The results where surprising on the first watch! Really cool, wonder how the durability is affected by this :)
My thoughts too, that’s what I plan on doing
Super idea, i bought the SDW Hypertec Shark with oil filling.
Great job! They both look great.
Thank you, Darak for this video. I think it's very helpful, and (as far as I know now), you do it quite properly.
I already moded a Casio F-91 years ago, filling it with Olive Oil !. At the moment, still it's working quite fine. Visibility doesn't change as much as with analogics, but oil improves dramatically the submergibility of the watch. This just "water-resistant" Casio has gone diving with me down to 40 meters more than five times. And many more, a bit shallower.
But now, I and a group of friends want to hydrolyze some analogic watches. First I decided to start with the MRW-200 that you fill here, because (as you say) the effect looks better than on the MDV-106. But after thinking about it, I'd rather prefer a watch like the Duro, with a screwed crown (even though a screwed-down case back is trickier to close than a case back with screws). I'm more confident about avoiding future oil leaks with a screed crown.
Let's talk about the procedure.
I like very much the box you used. I think it's the perfect size, and I hope to find something similar. I like also the way yo refill the leaking oil with the syringe. I guess that I will manage to close the screwed down back case properly (without leaving bubbles), and that I will set in position the crown, because I see that you close the case, before closing the crown.
Is this to avoid excess pressure inside the watch, while you are closing the back, and let the oil leak through the crown's hole, in case of necessity?
And finally, my biggest doubt: I don't see that you leave any bubble inside. The dial looks gorgeous in that way. But, aren't you afraid that with warmer temperatures, the oil expands inside the watch, and can cause problems (or leakings)?.
In other oil modding I've seen that they leave bubbles (bigger or smaller), and (for instance) Sinn has patented a special piston for dealing with this issue. Tell me what you think about it. Maybe this oil doesn't expant¡d too much with the temperature changes.
Finally, as I've seen in some other vídeos, I think that you are right with the density ot the oil. 50 cst seems t have the right amount. But I wonder why they don't use even less dense oils. If they keep the same conditions about conductivity, I don't see any problems to use them, and the hands would find less resistance in moving.
Anyway, thank you for this vídeo, And I hope to read your answers.
Hi Boga92, thank you for your long and informative common, but you really should watch this video first, and we can discuss more, this is my follow-up video of the Hydro mod, ua-cam.com/video/UpYuMbbw4bk/v-deo.html
@@darakwatches467 I already saw the other video. But I find impossible fitting the styrofoam balls in place while closing the case back. Do you think it's possible to fill the case with silicone oil through the crown hole? Anyway. I think you didn't leave any bubble inside these two watches. How are they behaving? Any leak?
For the thermal expansion, perhaps the o-rings of the buttons provide enough flexibility. Would be interesting to calculate the change in size of the oil.
I used my Food Saver vacuum device to remove bubbles from the oil bath. Worked well
It might be the sun burst effect on the dial of that duro that makes it a little underwhelming, since it catches light differently under the different refractive index of the oil.
Excellent video btw! Appreciate it
ok, but what happen when you extract the crown for adjust the time? the oil escape?
I was wondering this myself.
Think you should adjust the time before putting everything in
@@dyslexicbien so I think should be better a no-date watch ?
with Mine?..I made a "Rolex Submariner" style watch into a Oil filled to test it, it has a rubber O-Ring on the Crown shaft though not just a metal on metal seal... it seems to hold everything back OK when I change the time/date, I could imagine some air working its way into the case eventually with multiple changes...but so far?..it's held up ok!.
@@daalvares if you angle the watch correctly when changing Date/Time (crown pointing UP/High) then You should be OK for a FEW changes, eventually though?.. air would work its way into the case with Multiple changes, but that's a quick painless fix.. 10 mins every 6 months?.. MAX!
Does oil leak from the buttons or the crown when you pull it out to adjust the time?
That wouldn't be a very water resistant watch if that was the case..
@@20cent so even when you pull out the crown the oil stays in the watch? Oh I'm surprised that's really cool.
Does the watch tick slower when oil inside? it seems as if the seconds hand is a bit more "lazy". Don't know whether this affects the timekeeping...
Glad to find you again - I’m still looking for a small bottle of Fluorinert 76 I think - but cheapest is about £50 for 500ml (way too much).
As before, great vids BTW
👏👏👏👏👏
Super injoy coz tomorrow i buying a casio duro ang i going like your doing hahahahha thanks,, now i know
Watches look great man, I was reading that you can put the MRW200H dial/movement into the MDV106 body, maybe try that next so you get the look of the 200 in the Duro body, might be worth a video :D
in mechanic watches, does accuracy change with oil?
Ok looks great but how do you adjust the time
Nice vid and it works great BUT it eats batteries. I've done a few of these and the battery has lasted as little as a year. I'm guessing because the motor is using a lot more torque.
solar movement is the answer
@@artempriadko6974 No, the oil stopt enough UV from getting to the dial, so it will not charge enough.
So what happens now when you pull out the crown to adjust the time? Wouldn't the oil leak out? And you have to do this again when it is time to replace the battery?
sorry for late reply but i think some watches have some gaskets inside even if you unscrew the crown it is still water resistant
Really good question, because oil is uncompressible. If you pull or push any button it should leak
I imagine pulling the crown out would create negative pressure that would suck a little air bubble in past the O-rings, then pushing the crown back in would either compress that bubble or push oil out.
it's waterproof even with the crownd pulled
Surely this affects time keeping? Might b low friction but it’s more friction than air?
Since those watches are electronic, time keeping element doesn’t rely on moving parts and isn’t affected by friction.
Oil friction affects only moving parts that show time. If they are capable of doing their move within 1 second intervals, it should work with no problem.
I have a Casio MRW 200H watch, exactly the same as the one in this review. the watch is very powerful
Noway. Exactly the same? So you are saying you have a copy of a global mass produced watch? Unbelievable.
Will this work for automatic movements?
no way
What happens when you loosen and pull out the crown to adjust the time. Does oil seep out?
For added points do this on a glass table so you can see underneath ;)
Can you do this also with solar watches?
So, a watch with a screw down crown doesn't leak oil when you un-screw it it?
Whow, no triple whow. Unfortunately i could'ot give that super positive comment on your DARAK
Watches II channel. Therefore i do it here. Your video work is perfect, your comments reflecting your ambition , to do perfect work. It's perfect what you do. Of course subscribed. You got a new fan.
Does it affect the accuracy of the watch??
Very interesting, I would imagine doing so would make the watch more water proof in a way, right? Also won’t the oil cause friction and delay the whole watch by a bit over time? Also what happens when you change the battery? I’ll you need to have extra oil at hand to fill to avoid bubbles during battery changes, also would this work with a mechanical watch????
Which soap and material did you use to wash the excess oil
Does oil leak out if i am adjusting the time by pulling the crown out?
due to oil viscosity, how accurate the time will be? Kindly validate plssss
im guessing it will be delayed few minutes per day due to added resistance of the movement?
Replacing the battery will be messy
This is great for Quartz, not Digital
will it not damage the mocement?
That looks great!! Does it effect the battery life or accuracy ?
Battery life yes accuracy no is what I've heard
@@murcielago1029 Does it effect battery life even in a digital watch?
@@greggreg2458 yes… there arent batteries in mechanical watches lol
@@murcielago1029 quartz watches do exist.
@@MFRiley I suppose I mean "automatic", honestly I thought "automatic" and "mechanical" meant the same thing. My comment was meant to highlight that every digital watch has a battery. All digital watches (such as quartz) are going to have a battery and the battery life is affected by this technique. How fast it kills the battery, I'm not sure.
would the oil slow down the movement ?
Only this the viscosity is high.
I´m not an expert either, yet i think you need a convex lens in order to get the full effect like the watch on this video. Also, looking for viscosity and interaction with materials might be the kind of oil your looking for. Secondly, experimenting with the refraction index of the oil, in relationship with the kind and thickness of glass you´re using might create a more desirable outcome
Don’t you need a high torque movement to compensate for the fluid density and avoid the gearing and step motor from wearing out prematurely? Also, when you adjust the time, does it leak?
Wouldn't the viscosity of the oil affect the accuracy of the watch?
Mechanical I would absolutely think so, quartz, I don't think so as it's entirely electrical.
@@Genecaster wouldn't the hands of the watch find it harder to move? Real world testing have to be done to make any claims tho
Would you still be able to operate the crown to set time and date on the mrw 200h, without oil leaking out
Can one do this to a solar-powered watch? I ask because I don't think I'd like to do a do-over every time I need to replace the battery. If not, I'd recommend replacing the battery with a new one before doing the mod to make it last longer before the next reapplication of oil. Nice video and thanks! Thumbs up!
Same question bro
Quick question: what if you have to change the date or hour? Does it become a mess?
how does this watch continue to work? does the oil create resistance in mechanism?
What happens every time the clocks go backwards or forwards? Or even date detting. The crown coming out will introduce air won't it?
And what happen if you open a bottle keeping it horizontal, the cap will introduce air won’t it? ;)
Will oil create a drag on gear train.? & Stepper motor !
Doesnt the oil short circuit or ruin the electronics inside the watch
No, oil is an isolator and non-conductive.
It is make battery drain faster ?
Kamera pod spodem by ułatwiła robotę?
just wondering if this mod would improve legibility of a white dial/golden hands combo? thank you
can it cause leaks in the watch in the long run?
I wonder how much the weight changes. Thank you for the informative video.
I got question. If you hydromod a date watch, would it mess up the liquid if I were to adjust the date?
Great video, thanks for showing us how you did it. Did you oil fill the digital watch too? If so, can you press the buttons when submerged under water? Does the light still work?
Can I do this with my G shock solar ?
no
As long as the watch is 100 METERS or greater water resistance it should be fine. Anything less does not have sealed buttons when they are depressed so the oil would just leak out.
I wonder about power usage increase due to higher resistance of oil vs air ... and how you will change battery?
how would you set the watch thou. wouldnt the oil flow out if you hold it wrong?
Hello Darak, I was wondering can I use this silicone oil as a refill for my lubricating foam for watches? the ones inside the foam were liquid clear type silicone not the typical white ones.
Merci pour la vidéo.
Can the same technique be used for a rangeman 9400?
How does this not mess up the dial printing and hands lume?
Really interesting stuff.
Awesome but how does this NOT leak out of the crown.
They are water resistant watches. Seals at the crown.
No water in. Similarly, no oil out.
@@wallytangofoxtrot4721 awesome
Will the oil run out if you try to set the time?
I have a Question, dose the oil escape when resetting the Time ???😊
Found YA! Nice recovery bro
Hi Brandon, thanks.
is there an alternative oil that can be used? microlubrol or even fluorinert fc-40 is hella expensive to buy and also difficult to find
If you have to reset the time or date will the oil flow out?
You could close that container and turn it sideways so that the air can go out through the crown. Maybe it would take a couple minutes though
I wonder if the movement of the Seconds Hand and the mechanical gears, while they move through the oil, would create enough drag to make it use up more battery power, and shorten the battery life?
I learned from other videos that the electric current draw of oil-filled mod is 3-4 times more than the original non-filled watch. This is due to the drag that the oil makes on the rotating parts, demanding more power from the quartz drive. So expect your batteries to run down faster, meaning, if the original watch will run for three years before it needs battery change, the oil-filled one will last only one year or less.
Would this be suitable for a Marathon GPQ?
I'm curious to try pentane in a mechanical watch. it's still significantly more viscous than air, but only about 15 times more viscous rather than the 300 or so times the viscosity of the least viscous oils. it's also only about $35 for half a liter of the reagent grade stuff. I'm thinking it might be close enough that I can regulate it out and just live with not much power reserve. the only problem is I absolutely know it'll eat plastic parts and I'm not sure I'm willing to try it on anything that's got a metal movement holder.
What about battery life, since the friction/resistance would be greater than air
I wonder if it work well in my Bulova curv. I’ve been thinking about doing it as I think it would really make it pop.
Can a Hydro Mod work on a Casio DBC 150 and DBX 112 for Water Resistant
Just did it to my F91W a hour ago ... There is some minus point of it. The light was low on F91W. Now its more weaker barely shows the minutes. And the beep sound become very low.
I wonder how the analogue models respond to the medium viscosity increase after oil filling. Do they become less accurate or does the battery life decrease after such a mod?
I was wondering the same
Have you tested this on a timegrapher?
What about changing the battery? That seems like that would be a problem.
Can we do the automatic watch like this,
I wonder if its effect balance wheel and make accuracy change?😮
Newbie here asking a question, will the watch still keep time correctly due to the increased resistance of the oil against the seconds hand?
How do you reverse this in case that it does not work out well? I guess a lot of rubbing alcohol and work?
really cool 👍 ..well done !
Interesting. Looks great.
Hey mate
Any updates on the watches? Did they leak?
Can u show us to test the lume ?
Great video! Thanks for making it.
Awesome!!!
In theory, if you remove the seconds hand, the battery life would improve.
What?
You made them super water resistant
How much does battery life decrease after this process?
You can’t do it with a pro master automatic?
you CAN´T do it with automatic, solar or kinetic watches
just and only quartz watches can be immersed in oil