Finally, My First Time Working on a Chronograph!
Вставка
- Опубліковано 21 гру 2023
- Marshall restores another vintage watch, this time it's his most complicated watch yet; a Chronographe Suisse chronograph from the 1950s! He's been studying up on how to service these complicated watches for a while and it's finally time to dive in. This one was purchased on eBay as "for parts", and it proves to be quite the project!
Support Wristwatch Revival via Patreon: / wristwatchrevival
Visit Sutcliffe Hansen for toolkits, revived watches, straps and more: sutcliffehansen.com/
Follow on Instagram for Project Updates in between video releases: @wristwatch_revival
------------------------------------
These are Amazon affiliate links to some of the equipment used for these videos and purchasing anything through them helps support the channel.
WATCHMAKING TOOLS AVAILABLE ON AMAZON:
Bergeon Screwdriver Set: amzn.to/34URcok
Dumont Tweezer #3: amzn.to/2YX4Hjl
Bergeon Springbar Tool: amzn.to/3LczDlJ
Bergeon Case Opening Ball: amzn.to/34VLbYg
Bergeon Presto Hand Removal Tool: amzn.to/3bfHtdo
Bergeon Movement Holder: amzn.to/3hQsY29
Horotec Hand Setting Tools: amzn.to/2Gdye1K
Rodico: amzn.to/32K0PDG
Bergeon Blower: amzn.to/34RgVxX
Bergeon Case Opening Knife: amzn.to/34VHr9e
Bergeon Quick Service Kit: amzn.to/2QHnScC
Ultrasonic Cleaning Machine: amzn.to/3i6BBER
Amscope Microscope: amzn.to/2EuReZ4
Multifunction Timegrapher: amzn.to/3Keceit
Sanding Sticks: amzn.to/3QFBcMg
CAMERAS AND AUDIO:
Main Camera, Sony A7III: amzn.to/2Dk3Q4K
Secondary Camera, Sony RX100: amzn.to/2Dlrwpx
Tertiary Camera, Sony A6400: amzn.to/3jVaYqh
Main Macro Lens, Sigma 70mm f/2.8: amzn.to/3lD4Wdb
Secondary Macro, Laowa 100mm f/2.8 amzn.to/2ZGmFKo
Camlink 4k Video Converter: amzn.to/3hTiiQf
Shure MV7 Microphone: amzn.to/3KaMlQC
Audio Recorder, ZOOM H6: amzn.to/31R11BQ
Small Sirui Tripod: amzn.to/3K82W7Y
Sirui Tripod Head for Overhead Camera: amzn.to/2QNoNZ8
COMPUTER STUFF:
Apple Macbook Pro: amzn.to/3k170fD
Synology NAS: amzn.to/3k5sZlx
Seagate HDDs for NAS: amzn.to/3hQ5hqt
Samsung Portable Drive: amzn.to/34UdhTT - Навчання та стиль
Petition to have him repair a perpetual calendar
Marshall, I've enjoyed watching your videos immensely, and would like to offer a challenge.
I own a Swiss pocket chronograph with a beautiful Brevete 359 movement. This piece belonged to my grandfather, and I acquired it upon his passing when I was ten years old, I am now eighty five.
The watch was in working order for many years, but not anymore, and is complete, less crystal.
Would you be interested in taking a look and perhaps using this piece as the subject of a video?
Thank you.
Horology is so fascinating to me. It's incredible how for hundreds of years they were able to make such complicated things sitting by candle light. I feel like the people of the past were just as technologocially advanced as us, just not as electronically advanced. Beautiful watch and beautiful content. God bless you all.
even considering they did all this without computer software is even more impressive
@@Staniel_ Whoever figured out how to make watch movements is a genius.
Whether framed as technology or electronics, humans are no more intelligent on average than our species was 100,000 years ago. We just know and understand more, but the central processor is still the same. Technologically, we existed in a relatively slow pace of change for millennia. Access to the necessary materials and refinement just didn't exist. Notice when the ability to generate abundant power caught up with our understanding of material sciences, our development just took off. Then came electronics and computers. We've developed at a staggering pace over the past 100 years and really, most of it, the past 30 or so.
Where will we plateau? Who knows. If we manage to survive our technological infancy, then I believe we will achieve some remarkable things as a species in the future.
We're already making breakthroughs with fusion. Harnessing the power of internal workings of stars. There isn't a limit to what we can do. If only we'd stop trying to divide and kill each other over stupid petty crap.
They were just as smart, not nearly as technologically advanced though they did do things we couldn't do now except for a few rare skilled people. But then again we have skills now that they would think are literally magic so I think we win.
It’s impressive you can take it a part and fix it but the people who invented it are unreal.
I feel like Marshall is the kind of person that would be completely content sitting in rush hour traffic listening to his favorite song.
Hey Marshall, happy to see that you’re attempting chronographs! I have a lot of experience on these 48 based movements, and am trained and certified for them, so I hope you can take these points to improve your next Landeron chronograph.
11:48: this was not a little bit of wind, this was quite a bit of power, and combined with the lack of lubrication, this could have seriously damaged the pivots, and in worst case ruined the pallet stones. This was just very dangerous. Try to pay more attention and always let down the spring.
14:38: this main spring should absolutely be replaced. It doesn’t lay flat (so will rub against the barrel roof and floor) and is very tired. A modern spring is also more consistent in force. So get a modern one, but whilst measuring the old spring, take a modern one that is a bit THINNER!!! Very important as modern springs are substantially stronger.
18:14: did you grease the main spring? Didn’t see you doing that but maybe you did it off camera. In any case, it’s very important.
18:59: that is a ton of grease on that screw. That will just walk itself between the bridges over the years, there is just no need for that much grease. Later you also put too much oil under the crown wheel. Again, it’s messy, so try to use just as little as needed.
I also didn’t see you lubricate the click, which again, is very important. Could have happened off camera but still, it should be mentioned.
21:00: did you check the play of the center wheel and the bridge? These are almost always worn out, and should be fixed as the difference between horizontal and vertical amplitude would be too great without.
23:25: you should grease (again, very little) this eccentric where the lever bridge pivots around. Every single metal chronograph part that pushes against another one NEEDS grease. It will wear out very quickly. So the hammer need a tiny bit of 9010 on the ends (don’t oil the heart cams with HP1300, this gives too much drag. Just oil the hammer ends), and all the levers need a *little* bit of grease on the touching surfaces. Also a little tip, hammer goes in last, makes for much easier assembly.
27:05: you did grease the hammer spring, but that was again way more than needed, and smothered all over the bridge, please use less and take more care when applying.
29:55: yes that’s a mistake, but a very small one. No worries, everyone has done that.
31:00: again with the grease, please use less, you are using way too much. Keep it tidy and just use a little. This is the last time I will mention the grease as I think you get the point. It is just every time you use grease.
31:15: you missed the post and oiled the bridge. That’s not where it is needed.
35:51: your jewels are not clean, and you don’t want to oil the minute counter. That just adds unnecessary drag, and it doesn’t move often.
36:01: that was just messy oiling. Keep the oils in the cups.
38:50: it is easier to oil the top capjewel if you assemble the balance bridge and then oil it with the pass-through method.
41:46: you didn’t oil the clutch bridge wheel and post. Give the wheel pivots on both sides some 9010, and the post a little grease so the clutch bridge pivots nicely.
42:20: the top second wheel (the one you press on the second wheel) is pressed too deep, it needs to align perfectly with the clutch wheel. The teeth also should mesh for 2/3-3/4ths of the way, not all the way.
42:42: very important that they DO NOT mesh all the way, but should be 1/4-1/3rd at most meshed (looking at the chronograph seconds teeth).
42:48: don’t oil that spring of the minute counter. Again, that’s not a wear point and adds too much drag.
43:40: great work on those adjustments! These are tricky, and you did great.
I hope you checked the pull-back adjustment of the lever bridge in reset mode, and also the adjustment of the minute counter spring in reset mode.
Then finally I wanted to add that you need to take more care in where you place the hands. Because they should be dead right on 0 when the chronograph is reset. Not somewhere around it.
I hope to see you tackle more chronographs in the future, it will be interesting to see you learn.
Solid advice!
I came to the comments to mention the need to replace the mainspring, and not to oil the minute jumper… hats off to you sir, for taking the time to point out the improvement areas, not just for Marshall, but the rest of us as well!
And to Marshall, great work as usual! First chrono usually feels like getting back to the start line… redoing this with the tips above in mind will do A LOT to your chrono skills. Keep it up!
Thank you for your valuable insights, it's fascinating the delicacy required! Hope to hear more feedback from you in the future!
Great feedback! Now I dont feel so bad for sending my speedy racing for repairs!
This art is wild
I have my first chronograph by Heuer that’s been sitting at the back of my bench waiting for me to scrape up the courage to service it. So this video has been an inspiration that will help me get over the stress about getting started. Many thanks for building my confidence!
Just wanted to say thanks. I went ahead and did Patreon. I don't know much about watch making, but I quit alcohol in 2014, then switched from smoking to vaping where I turned into a full hobbyist making all kinds of very intricate coils. I already enjoyed working on little intricate things where I spend 15 hours working on a 10 inch length of wire. Finding your channel working on these watches has been an absolute joy. I never considered working on watches until I found your channel. I've seen a few other channels, but I keep coming back to your videos. The work you do is incredible, and no one can match your presentation. I don't know if I'll ever be good enough to do the kind of work you do, but you have given me a new fascination, and something that I so enjoy watching. I'm a custom residential cabinet maker and I enjoy working with wood too, obviously, I guess because I own a cabinet company, but I just find this so intriguing, and already being in the vape wire art world the intricate work on tiny things falls right into the kind of things that I love. The things that keep me sober, and the things I love doing. Thank you for making these videos. I hope I'm able to offer some contribution to your work, and I'm so glad that I found this. Maybe one day I'll hit up ebay and buy some cheap mechanical watch and try my hand at working on one. Thanks again. I really enjoy watching your work!
Good shit brother
Garage sales and estate sales are two of the places I buy watches.
Stapled fraliens and the such?
@microwaveoven5944
Absolutely. The more complicated, the better. Gotta be careful though. Some of them ohm out too low to really use long term. Some coils are mostly about the art and colors that come out of the different metals at break in. Can get some really cool pics though.
Well done brother.
Maybe now people will understand why servicing a chronograph is so damn expensive.
Its just more screws and springs.. I dont feel like its that different
@@DutchClawz the order of assembly/disassembly varies greatly from chronography to chronograph, some are far more difficult to service than others.
@@DutchClawz You sound like the type of guy that takes his car to the mechanic, refuses service due to cost, goes home and makes it worse, and then comes back much to the chagrin of the mechanic as they now have clean up after your mess because you thought it was "just more screws and springs."
@@squidikka Well, i have a fair bit experience with watchmaking and chronographs. Its the same principle as a normal watch, just more parts..
Such a good channel
Congratulations on getting your first chronograph up and working! You're right, seeing the inside of a regular watch and seeing you take it apart is quite intimidating. Seeing the inside of the chronograph and the additional complexity almost made me cry.
Marshall...I just wanted to thank you for being yourself and making these awesome videos.
I've been watching for years and really enjoy the simplicity and complexity of your skills.
All the friends that I recommend your adventures to have subscribed and enjoy your output, as well.
I wish I had more money to be able to afford a sticker and a thank you card.
I just started following your channel a few weeks ago and about 2 days ago I noticed all your watch repair videos were for regular watches and not chronograph watches. I even searched your channel for "chronograph" to no avail. And at that point, I thought to myself "well it's probably because they're so much more complicated".
And yet here you are, not a day later posting up your first chronograph watch repair. I can't wait to watch this and I really appreciate your candidness and humbleness about your current skill level. I love the fact that you're only trying one now after taking the classes and reaching a level of confidence, but also stepping outside your comfort zone a bit.
Now. Onto the video!
First Jewel replacement and then your first chronograph. Making some great strides in building experience as 2023 comes to an end.
You make a lot of car references in your videos are you pretty interested in car restoration and or racing? Love these videos!
41:30
watch the entire video
It has been such a pleasure to see you progress in your skills and experience. Thanks for letting us share this journey with you.
the more I watch, not only do watches simply amaze me, but what amazes me more is how long watches have been around and how similar the modern ones are to the older ones. amazing how well they have been engineered for so long. I would also love to see how those extremely small screws are made. insane to me
That is a beautiful watch. Love the channel by the way. It’s so great seeing people do these hobbies because they love what they do. Just goes to show how much more time effort and detail goes into these Watch services when you really care about what you do.
I really appreciate Marshall's forthrightness about his nervousness in dealing with the chronograph portion. He has such a comforting manner in dealing with the unknown element of challenges!
Another great posting Marshall, thanks for the breakdown of this chronograph.. the best of holiday cheer to you and all your subscribers.
Congratulations, Marshall! That is a great video! Thank you for taking us with you in this great adventure! Hoping to see more!
Just received my Sutcliff Hansen full tool kit!!
Thank you!!!
The close up shots of the chronograph mechanism are amazing. Love the dial on this watch. Thanks for sharing
Love to listen to you explain every step and why you're doing it.
Its great to see the past two videos you moving out of your comfort zone and developing your skills. From replacing the jewels in the last video to working on a chronograph in this one. Not to mention your explanations on the workings and new techniques you've shown us. Yet another excellent, excellent video. Marshall, thank you. BTW love the dial. It took me a while to come around to a dark color face with black lettering and hands but when you put the strap on it it worked. Very much so.
i've been waiting for this day to come!
i've seen enough of your videos that i understand pretty thoroughly how an uncomplicated swiss watch movement works, so i've been hoping for an increase in complexity for a while now. thanks!!
All the extra parts for the chronograph is really fascinating. Another awesome project.
Marshall, it has been fascinating witnessing your watchmaking development over the past several years. This piece was especially appropriate in demonstrating how far your skills have advanced. Thanks for all your enlightening, entertaining and engrossing work. Best wishes to you and yours for the holidays and the new year.
Looks fantastic. A great job on the restoration of this piece, from start to finish. Love the old movement. Excellent job Marshall...Kudos to you.
Neat! Some time ago I watched a video on rehabilitating a stopwatch, so it's interesting to see that movement conjoined with the regular watch movement.
I also think it's great that you're offering watch repair tools and such for other folks wanting to pursue this kind of work.
Hey marshal! I love the videos and the progression of intricate work you do! You gave the the confidence to modify an old clock to hold some hands on a modern timer! Keep up the awesome work sir!
Oh man! I always look forward to your uploads Marshal! It’s pretty late. I sure hope I can stay awake for the entire video! You are the best and the only watch servicing channel I watch. I’m excited to see how you do with this chronograph!
What a cool ol watch. This repair of such a complicated movement was fascinating to follow. Thank you for sharing this with us.
You know, I was actually at the local Seiko jeweller today looking at some mechanical wristwatches and I saw some with this complication. Was a little confused at first until I worked it out. Thanks again Marshall for spreading the good word of mechanical watch movements. Your dedication to the craft is inspirational.
Thank You for sharing Your time and efforts Marshall. Best Wishes to You and Your Family for the Holiday Season.
Thanks a lot Marshall. I just started servicing watches because of your videos! You're such a good teacher, love all your detailed explanations.
Great job Marshall! What a wonderful old watch. I'm glad to see another one recovered from the ravages of time!
Such a blast to watch your skills in watch restoration, especially this monster.
oddly cool chronograph, well done. the journey continues. thanks for sharing.
This time I could hear rich, orchestral music in the background while watching you work. Exquisite job! Thank you!
Thank you for popping these videos up here ! There's something about your commentary and delivery that stands out...I think it's how you speak to us as one regular guy to another.
Thanks for all your hard work in recording your adventures . It's amazing to see the amount of care and determination you put into thos hobby. Love to see these new videos popping up. Keep up the good work!
Thanks for another year of great restorations.
Thank you so much for including the magnified look of the eccentric settings and how they change the engagement of the gears on the chrono!
Hey Marshall, thank you for sharing and being part of this amazing experience...!
Great video as always! The eccentrics are exactly like the eccentric bolts on cars to adjust the wheel alignment!
Done like a Pro, Marshal. I work on a lot of Seiko and Citizen chronographs and there is nothing easy about servicing chronographs. i must say you have some very nice tools in your inventory. Thanks for sharing your work. John S
I see your videos as classes, and you have inspired me to get into it, starting to get tools and equipment together now.
im sat here in awe of the amount of work that went into a watch like that i am wearing a 1950s gold chronograph and mine has the extra function of a date hand , it make me appreciate it even more , thank you for showing this and i you have a good christmas and new year
Congratulations, Marshall! 🍻 I admit I _am_ intimidated by chronographs, but I'm going to take Mark's course as you did, and I'm sure some focused study will banish the fear. It all takes time, but as hobbyists we can enjoy the journey. Again, well done sir!
The Swiss watchmakers are just astounding!!! Reminds me of a story back during the Apollo space race days where NASA had drilled the smallest hole in the world and sent out samples of the drill bit to anyone they thought would be interested in it. They had sent one to a watch company in Switzerland and in a few days it came back...no note accompanied the bit and everyone was confused until someone looked at this microscopic drill bit under a microscope. They had drilled a hole in it and sent it back!!! That was such a monster move! :)
Absolutely love this! It's great to expand your knowledge & skills (and ours vicariously!) and chronographs are something I've been fascinated by myself. Gorgeous dial, and it's fitting that the font & layout reminds me of the old stopwatch I have from my dad who used it for pace notes when he was rally driving... I still pull it out of the drawer to use in preference to a digital one because there's something special about the weight & ticking sound from a mechanical stopwatch. Brilliant job! 👍
This is one of the nicest looking pieces I've ever seen you restore. ❤️
WOOO HOOO I was wondering when a new video was coming out. I was actually watching an older video then this popped up, cheering 😁 Hope you have a merry Christmas Marshall and thanks for the great content.
Nice work Marshall and congrats on servicing your first chronograph! Quite a milestone! What a striking timepiece and masterfully restored.
So fun watching how much deeper that you're going down the rabbit hole. Deep Breathe. You finished your first Chronograph!!!
Thank you for doing these - seeing these so many times, gave me the confidence in allowing me to dive into my first watch repair (though my specimen was radically different from the watches you repair and had a surprise in store for me to figure out why it was only partially working when I found it). I think my next adventure will be to build a mechanical watch from scratch.
Oh boy. This is going to be an adventure. 🎉
I just watched a video so sick
It made my jaw drop and my brain tick
The visuals were fire, the beats were tight
I couldn't help but move my feet and ignite
The story was gripping, the message was clear
It left me inspired, without a fear
I'm telling you, this video was no joke
It was the best thing I've seen, no smoke
This brings back memories. The landeron 48 was the first chronograph that I ever repaired. Still wear that watch from time to time.
Recently had my 1971 Heuer Carrera valjoux 7726 three sub serviced. I was amazed when I received pics of it all laid out in parts on the bench before assembly. Works great now. Good luck.
And if people think a chronograph is complicated, wait till marshal starts working on a perpetual calendar
Pffft, wait until you see my SpongeBob watch
First!
What do you win?
@@S3ARCH_N_D3STROY a very small amount of satisfaction
I have seen you repair inexpensive and top end watches but, for me, this one is absolutely gorgeous. Cracking resto Marshall.
And you still made it look as easy as any watch you've ever done. Always enjoyable to watch.
I would just drill those lugs. Never even heard of inverted lugs, and see zero point of going forward with them. As a bonus, you can sell the gold shards for 1 dollar.
Agreed. Seems like a silly system. Plus if one wants real “fix-in-place” type of security, screws and bars are the way.
I have just found your videos this December and have been hooked but was anxiously awaiting a chronograph, because like you that is my favorite watch complication. Keep up these videos they are amazing and have given me a push to begin watchmaking myself, first as a hobby, and who knows after.
Hello Marshal, excellent video , I must say I like seeing it back in it's case with a new crystal . As for some reason the crystal brings out Beauty of the face so to speak , thank you for having us along in your watch repair journey!!!
I love that even someone with your knowledge and skill can still be daunted, stretch themselves, and take on new challenges in the watch world.
The reveal of the movement made my jaw drop. I’ve kind of gotten used to what a typical movement looks like from watching your videos, but the chronograph is a huge step up in complexity! Looking forward to seeing this fix!
There is humble and humblebrag, you are 100% real humble professionalism; even your invite to Patreon you honor the process first to only then focus on yourself. Very very inspiring!
What a feat! Gorgeous watch too! The color pallet reminds me a of my old school watches I have from the 60's and 70's. Love that vibe! I will check out your new website, have been pussyfooting around watch making because I'm convinced I am too crude in my muscle control and will only be frustrated, but the dream of servicing my own watches has been itching inside my skull for ages, so I should take the plunge I suppose! Thanks again for being such a gentle inspiration!!
Mark is amazing. He makes things so small seem so easy to work on.
I have recently started watching your channel and im the type of person who loves puzzles and seeing you break down a watch internally and i cant get enough i stay glued to my tv screen watchin your videos and i hace add yet im fully immersed in this and i have seen a video where u annouced a box that comes with tools and a watch i can build and comes with tools but i cant find it and woukd love to see you promite this box more plz
Not going to lie but these videos actually help my PTSD anxiety and panic disorder. 🙏 thanks so much.
really excited to see more chronographs on the channel. I'm a racing fan myself and I love me some classic time keeping.
Thank you, Marshall, for all that you do.
I love the copper look of the dial. I would have repainted the hands and replaced the crooked one, but overall, a very gorgeous watch and it's so mesmerizing to watch you work and explain things.
Tuning the chronographs was so exciting! It kept me on the edge of my chair. I'm so happy to see it being done on camera. Usually that part is just mentioned but not showed. I can't wait for the next one and when you come to colum weeks that ask for extra tuning apparently. Oh boy this is exciting stuff. Great work!
You are a very smart man, with infinite patience and amazing attention to detail. Your voice is very soothing, easy to listen to and calculated...You somehow make this watch dissection of a million pieces enjoyable to watch. Also I must say that the end restoration result is beautiful and rewarding on many levels. I would love to see what you look like :)
Gotta say that’s one of the nicest Sussie chronographs movements I’ve seen, absolutely love the rose gold/ copper colored wheels, I have one I serviced and restored and love it, such a gorgeous dress watch I wear all the time
Ive spent 50mins watching this❤well its better than just watching random videos😊
Congratulations Marshall. Nice to see all your videos and successes on your hobby that you enjoy. Thanks again.
Marshall I've been waiting for you to do a watch like this, amazing! I have a Poljot 3017 USSR Cosmonaut Watch from 1964 (that does actually need a service), and a later version with a 3133 Calibre. Your are very brave to service these.
i have to say you are the coolest and chillest guy on this entire platform
You never cease to amaze me Marshall. Thankyou very much for sharing your journey
lol. That “what have I gotten into” response after opening the back was so genuine. Happy Holidays to you and all your viewers!
I have never seen one of these on the inside. Really amazing engineering in such a tight space, thank for making this video, I really enjoyed it 👍
Thank you, Marshall, for sharing this beautiful video of your very first chronograph! It was a pleasure to watch and listen to. My, how you have "evolved": 👏👍👌!
Marshall, Thank you for another entertaining and educational video. I have not tried my hand at any kind of watch repair, but I am getting into repairing old film cameras. The timing escapements on these mechanical cameras are essentially a clock work mechanism. Your videos really help me to get an idea how to disassemble, clean and reassemble these parts. Thank you again, and keep up the great work.
Congratulations on your first successful chronograph service! Well done Marshall!
I’ve been looking forward to this, I own a couple of chronographs and I’m fascinated by how they work so thank you and well done
HI Marshall. I never considered working on something so small, but you have shown me what can be done with study and the right tools. I really enjoy your monologues as you work on the subjects at hand. Thank you for these interesting videos.😀I plan on going to the patreon as soon as I FIND OUT HOW!
Another great video describing how to do watchmaking. You are a braver man than I taking on a chronograph and then putting your first attempt on UA-cam for all to see. I am a gearhead too and would not take on a new engine or transmission for the first time without more nervousness than you.
I love this guy. I watch his videos because it relaxes my mind. Been having mental health issues and getting better but watching these videos help. So thank you for helping me over my problems.
What a pleasure it was to go on this journey for the first time with you.
You should absolutely keep that beautiful thing for yourself as a momento. A wonderful success story you can tell your friends and family about for years to come, I also love the fact that you didn't fix the dents on the back covers or the light patina on the dial, that's history right there.
What a great channel! I can't explain my watch fascination (as if anyone can!). Your narration, style and expertise have been such an eye opener! Truly top notch!
42:20 How oh how could something so intricate be designed and manufactured? To use an overused word, this is truly awesome. Marshall, once again you did some great work. Thank you.
Very well done Marshall. If I am honest for a moment, I had no doubt that you could do it!! Tnx for the ride. Mike in Germany.
Marshall, I never cease to be amazed by your craftsmanship! Another stellar video. :)
I own a Seagull 1963 and sure this video is helping me have a complete new level of appreciation for that ST movement!
Very well done! I'm about to start on my first chronograph as well (Venus 170 movement). I'm glad to see that yours turned out so nicely.