cazalea[Seiko Moderator]
17087
He explained to me that the advantage was springing on each end of the balance shaft
May 09, 2020,09:02 AM
Whereas the normal system just has a shock absorber on one end. Perhaps double the complexity and difficulty of lubricating, but overall that's not too much impediment in the sort of watches he was building.
Mike
PS 15 years ago next month with a few younger watchmakers and collectors
I can see we are sitting down - I think talking about the advantages of 4WD on snowy hills in Switzerland where Derek was then living - at the time I had a 4WD 2CV
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Shock protection systems
By: mj23 : May 9th, 2020-06:43
Noticed different types of shock protection systems in my watches. Very important little component. Upper left - Incabloc on Lange Datograph Up/Down Lower left - KIF on Habring Erwin Upper right - Seiko Diashock on Grand Seiko sbgw231 Lower right - Duofix...
Tremendous photography
By: Lankysudanese : May 9th, 2020-07:27
I’d always been intrigued regarding these. Any idea what the relative effectiveness is?
The scariest component in the whole watch (with examples)
By: cazalea : May 9th, 2020-08:53
because it is a tiny brass spring atop an even-tinier circle of crystal, held under tension that must be released by the watchmaker but turning or unclipping it. It's a small amount of tension, no doubt, but given the low mass of the spring, it's enough t...
Something completely different: Derek Pratt's shock protection:
By: Spangles - Dr. Tabby : May 9th, 2020-08:53
The usual shock protection wasn't enough for the Charles Frodsham wristwatch due to the precision needed in the escapement. Pratt's system should be better, or so he thought. The prototypes with this system were taken on daily bicycle commutes and used do...
😸 [nt]
By: Spangles - Dr. Tabby : May 9th, 2020-09:09
Nice post
By: TeutonicCarFan : May 9th, 2020-10:09
subscribed, as they say. I guess I never really think about the shock system and what it does. I will keep viewing responses and read some myself. Is this mechanism purpose to keep the balance shafts in alignment so a force to the case does not throw the ...
😸 [nt]
By: Spangles - Dr. Tabby : June 13th, 2020-17:14