Fascinating article on movement performance just surfaced

Jan 14, 2020,22:43 PM
 

watchesbysjx.com


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Thanks a lot for sharing, this is extremely interesting, to me at least!

 
 By: jack johnson : January 15th, 2020-01:47
Some practical findings for me personally based on this balance power table: - I always suspected that Bulgari thin movements were not designed to deliver great rate results, and the table proves this; - I always suspected that the Breguet's 10-Hz caliber... 

Excellent article.

 
 By: VMM : January 15th, 2020-03:09
i read it yesterday, twice, I really enjoyed it. Thanks. Vte

Thanks for giving a heads-up to this article

 
 By: onnomon : January 15th, 2020-07:58
This is really good stuff for us non-watchmakers. I was happy to see the JLC 877 represented- a driving force in getting my Panerai 190.

Hehe :D [nt]

 
 By: VMM : January 15th, 2020-12:14

Very cool! Thanks

 
 By: ektaylor : January 16th, 2020-09:17
I was wondering why so many watches “underperformed” (darker yellow) until I realized that Harrison’s H4 was in the mix! The GOAT watch/clock.

Can you elaborate on your question?

 
 By: brandon1 : January 19th, 2020-16:58
What kind of errors and to which ratios are you referring? A remontoire’s only function is to ensure that the strength of the impulse to the balance is consistent throughout the power reserve.

If the movement was adjusted to run within COSC parameters, then yes.

 
 By: brandon1 : January 20th, 2020-09:17
That’s the idea behind the remontoire in the Lange 31 and RL Terraluna. But keep in mind that while the remontoire will keep impulse (and therefore amplitude and balance power) stable throughout the power reserve, it doesn’t necessarily mean those values ...