Excellent dissertation. 😊 One mechanism I was waiting for you to mention was a fusee & chain, that's a really interesting mechanism and arguably even more rare than a remontoir.
I was going to do include F&C and suggest finding one on eBay in a pocket watch-an affordable one too. There are just so few in a watches because they're so big, Lex. Take care, Bill
Excellent topic to cover and great information, Bill. But always remember that an Automatic Rotor is likely your best and most cost efficient constant force device, as it should keep the mainspring in its Goldilocks zone assuming you are active and wearing it consistently.
Fantastic presentation Bill. I have a headache though, my brain is having a hard time taking in all the information. Hopefully in a short time I'll have my second watch with AgenEse gears. Best regards, Brian
I think HRM.H has a point. For exceptional horology it is something for the ‘standard’ to be redefined in this modern age. In regard to the Maltese Cross mechanism, in this day and age I think instantly of the Gravity Equal Force by Armin Strom. Tests show it works well in practice. Armin Strom is really interesting from a technical standpoint, doing more for a modern definition of high horology. I am also thinking of Armin Strom’s patented Resonance Clutch Spring in the Mirrored Force Resonance. That’s our predicament as collectors- we just want one of each. 😅
Thank you Bill; very interesting! One watch I would like you to review in depth is the H Moser fly back chronograph movement and to address specifically the maintenance issue of chronograph watches (such as vertical clutch does not increase tear and wear when using the chronograph as a small second for example). Anyway, thanks again!
You understand how helpful this was to me. I am extremely new to watch collecting, and my knowledge base is vague at best. Recently at Watches and Wonders, Grand Seiko revealed the new Kodo. I understood the purpose of the tourbillon, I didn't know what a constant force (remontoir) mechanism meant or it significance. Thank you for expanding my knowledge base
@@watchartsci There are fusee & chain wrist watches out there: Zenith did one, there's the pour le merite series from Lange, The Romain Gauthier Logical One, and some or most of Ferdinand Berthoud's use fusee/chain. Definitely not common but they're out there
This is really interesting, although I missed the double hairspring. I wonder if there is any source on the improvements they do for accuracy. I know Rementoir is very expensive but never saw a comparison with and without it to understand the real life benefits.
Cesar, let me know if this is helpful: www.watchprozine.com/horological-meandering/straumann-double-hairspring-vs-tourbillion/4907813/17/#:~:text=When%20the%20gravity%20center%20of,position%20on%20the%20wearers%20wrist. Take care, Bill
Thank you for this presentation Bill. There is a SE Roma Power reserved on Chrono24, listed for a little over $6000 negotiable. Seems like a fantastic deal. 👍 Love to own one someday .
I have a GP Constant Force. Not only a constant force mechanism but also a double direct impulse escapement. However not self-starting, as I show in a short video on my youtube channel. A very interesting evolution in non traditional horology
I don't get it. A tourbillion doesn't give you constant force, but supposedly helps against gravity. Also, double barrels in parallel give you more torque to drive complications, but may even work against constant force. I liked the rest of your presentation.
Excellent dissertation. 😊 One mechanism I was waiting for you to mention was a fusee & chain, that's a really interesting mechanism and arguably even more rare than a remontoir.
I was going to do include F&C and suggest finding one on eBay in a pocket watch-an affordable one too. There are just so few in a watches because they're so big, Lex. Take care, Bill
Excellent topic to cover and great information, Bill. But always remember that an Automatic Rotor is likely your best and most cost efficient constant force device, as it should keep the mainspring in its Goldilocks zone assuming you are active and wearing it consistently.
That is a good point SNC...Take care, Bill
Just what I thought, automatic wrist watches side stepped the position problem that required the tourbillon too.
@@dunderhay9169 Not exactly-you have to take into consideration the many different forms of activity - as it varies so too will the accuracy.
Fantastic presentation Bill. I have a headache though, my brain is having a hard time taking in all the information. Hopefully in a short time I'll have my second watch with AgenEse gears.
Best regards, Brian
The pain is from all the ignorant watch propaganda leaving your head Brian! Take care, Bill
I think HRM.H has a point. For exceptional horology it is something for the ‘standard’ to be redefined in this modern age.
In regard to the Maltese Cross mechanism, in this day and age I think instantly of the Gravity Equal Force by Armin Strom. Tests show it works well in practice.
Armin Strom is really interesting from a technical standpoint, doing more for a modern definition of high horology. I am also thinking of Armin Strom’s patented Resonance Clutch Spring in the Mirrored Force Resonance.
That’s our predicament as collectors- we just want one of each. 😅
Since I made my own resonance movement out of two Seagull 6498 clones, Audi, I'm sold on the mechanism. Take care, Bill
Geneve stop works should be standard on any modern mechanical movement in my opinion. Far less complex than the other constant force mechanisms.
Hi HRM, I think the criterion for HH should be either a remontoir d'Egalite or double barrels in parallel. Take care, Bill
Would not two barrels in series be better than parallel?
@@ollik8192 Not for sharing the burden, but in series more reserve. Take care, Bill
Your in-depth knowledge and research are always inspiring Bill
My way of having fun in horology is learning more about it, Cubatea! Take care, Bill
I learn something new, every time I watch your channel.
That's great, David, and I learn a lot from you guys! Take care, Bill
Incredible engineering and craftmanship. Thanks Bill
Which constant force mechanism is in your collection, Erik? Which would you like? Take care, Bill
@@watchartsci Derek Pratt’s without a doubt
Thank you Bill; very interesting! One watch I would like you to review in depth is the H Moser fly back chronograph movement and to address specifically the maintenance issue of chronograph watches (such as vertical clutch does not increase tear and wear when using the chronograph as a small second for example). Anyway, thanks again!
Wow Pierre! That means the AgenGraphe movement ... let me see what I can do. Take care, Bill
Great video and explanation Bill, one of the dream complications to have in a grail watch. Thanks for the video. Take Care and have a great weekend!
Thanks Abdul. Any ideas for E4 complications? Take care, Bill
@@watchartsci Yes, definitely 😁😁👍🏽
You understand how helpful this was to me. I am extremely new to watch collecting, and my knowledge base is vague at best.
Recently at Watches and Wonders, Grand Seiko revealed the new Kodo. I understood the purpose of the tourbillon, I didn't know what a constant force (remontoir) mechanism meant or it significance.
Thank you for expanding my knowledge base
Glad it was helpful, Space! Take care, Bill
Fuseé & Chain mechanism is one whose video I will eagerly await. So many cool watches out there with it as well, and a lot of variety therein too!
Abdul, aren't most of the watches withfFuseé & chain pocket watches? Take care, Bill
@@watchartsci There are fusee & chain wrist watches out there: Zenith did one, there's the pour le merite series from Lange, The Romain Gauthier Logical One, and some or most of Ferdinand Berthoud's use fusee/chain. Definitely not common but they're out there
@@bontakun2002 I know A. Lange did one, I didn't know about the others. What's the ref # on the Zenith? Thanks, Bill
@@watchartsci not sure ref# but it's called the Zenith Academy Georges Favre-Jacot
@@bontakun2002 Thanks!
This is really interesting, although I missed the double hairspring.
I wonder if there is any source on the improvements they do for accuracy. I know Rementoir is very expensive but never saw a comparison with and without it to understand the real life benefits.
Cesar, let me know if this is helpful: www.watchprozine.com/horological-meandering/straumann-double-hairspring-vs-tourbillion/4907813/17/#:~:text=When%20the%20gravity%20center%20of,position%20on%20the%20wearers%20wrist. Take care, Bill
Good stuff . Love that Etude of course . It is soo nice it turned out so well for your groups effort .
Hi Geoffrey, thanks man! We were fortunate in having excellent Swiss watchmaking companies work with us. Take care, Bill
Thank you for this presentation Bill. There is a SE Roma Power reserved on Chrono24, listed for a little over $6000 negotiable. Seems like a fantastic deal. 👍
Love to own one someday .
Whoaa, Q-👁️, that is a good deal! Thanks. Take care, Bill
highly interesting post. thank you and have a blessed weekend
Hey Axisskin, thanks man! Take care, Bill
I have a GP Constant Force. Not only a constant force mechanism but also a double direct impulse escapement. However not self-starting, as I show in a short video on my youtube channel. A very interesting evolution in non traditional horology
Wow Maurizio! A GP Constant force is a very nice watch for any collection! Take care, Bill
Thank you Bill 🥃
My pleasure, Tim. Take care, Bill
Thanks Dr.!
Any time Haaaaa Veeeee! Take care, Bill
I don't get it. A tourbillion doesn't give you constant force, but supposedly helps against gravity. Also, double barrels in parallel give you more torque to drive complications, but may even work against constant force.
I liked the rest of your presentation.
Olli, only in pocket watches is it that helpful. Not so much in wristwatch. Take care, Bill