WatchProSite|Market|Digest
WatchProSite|Market|Digest

Horological Meandering

Corrections to the description of power flow

 

Please see the correction in italics. Apologies for the error. Can moderator either replace the two initial paragraph in my original post or place this post below the original for correct reading. Thanks.


Watches need to be fed continuous energy to drive the balance wheel and regulated via the hair-spring, for driving the relevant timekeeping, chronograph, calendar and other functions. The source of delivery of this power is residing in the watch in the form of a coiled-serpent i.e., the main spring which is tightly wound in a concentric circle around an arbor and ready to release all its energy in a snap.


The Merlins of watch-making have worked out the mechanism, to allow this coiled-serpent to expend this energy in a steady trickle to the balance wheel through the pallet escapement; and regulated via the hair-spring ; and I will not trouble you with those details; except to say that it is all figured out..

  login to reply
11 Comments view entire thread 

Too Short...or too Long? The power reserve conundrum

 
By: chintu : April 30th, 2021-16:11
Power Reserve – the long and short of it…. While many of us have been discussing new models and the technical innovations incorporated into the calibers as well as the matters of finishing and aesthetics, I felt that it may be interesting for us to do a r...  

Excellent post, which i'll comment on shortly, but wanted to correct a minor thing if I may....

 
By: DouglasM : April 30th, 2021-16:34
The base caliber in the Parmigiani Bugatti you have listed varies, but is well over 200 hours in its forms.

Very interesting article. It’s a pleasure to see this kind of work here. It’s a really important discussion

 
By: ChristianDK : April 30th, 2021-18:56
And it is easy for manufacturers to lengthen the pr and it looks great on a spec sheet it as you rightfully point out, it comes with a price. A minor correction The FP Journe 1304 has an autonomy/ pr of 56 hrs +-2hrs.

Thanks for the correction.

 
By: chintu : May 1st, 2021-02:00
Yes. FPJ has used the parallel barrels to drive accuracy instead of elongating the power reserve in Cal 1304. So the power reserve is kept at 56 hours.

Superb article. I will take my time to read through this.

 
By: ik2000 : April 30th, 2021-20:14
After a great explanation, I'll need to look at all of those movements a lot more closely. Excellent post, especially with the examples given.

Very informative and interesting post. So many options...

 
By: Chronometer (aka yacomino) : April 30th, 2021-20:25
In general I would prefer accuracy over length of power reserved, some of your example provide excellent rate even with a super long reserve...

The BP and the Chopard are really nice movements.

 
By: Mpower16 : April 30th, 2021-22:24
Moser is a standout too. Thanks for sharing this, power reserve is among the most important features. I mean you can always have endless watch winders if you want or set a watch each time but I like the process of switching watches to be effortless.

Corrections to the description of power flow

 
By: chintu : May 1st, 2021-01:54
Please see the correction in italics . Apologies for the error. Can moderator either replace the two initial paragraph in my original post or place this post below the original for correct reading. Thanks. Watches need to be fed continuous energy to drive... 

Have you read the brilliant articles by

 
By: Rapwatch : May 2nd, 2021-17:46
Purist Alumni Velociphile and Brandon Moore on watchesbySJX? Search term HDF. R