cazalea[Seiko Moderator]
17149
Here is a similar use of the coil spring; in Richard Habring's split second chronograph reset mechanism
Apr 28, 2024,22:22 PM
Picture from "The Naked Watchmaker" deconstruction of the 7750 with split seconds.
BTW the original image you provided of the pocket watch is using the helical spring in the same sub-system of the watch - to pull two arms together when resetting one of the chrono hands.
I took one of these watches apart under the watchful eye of my mentor. He put it back together...
Cazalea
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helical tension spring in a movement?
By: xto : April 28th, 2024-18:34
Is this common? If so, where? Spotted in an Olympic chronograph at the Omega museum - a movement with a helical spring used in tension, upper center. ...
thanks for the detail and great pic
By: xto : April 28th, 2024-19:39
I'm always interested in oddities / singularities - when one person does something differently than (apparently) everyone else. I assume that others use regular leaf springs pressing against the outer surfaces that are connected in these two cases by a he...
thanks, so I see it's not unique.
By: xto : April 28th, 2024-22:37
all told, this is making me think of the British Garrard turntables I used to dismantle as a kid - lots of springs like that!
Its there in the
By: yming : April 29th, 2024-00:09
1815 perpetual calendar Rattrapante and the 1815 Rattrapante It’s not hidden - the wheel rotates - so it’s just by coincidence it’s hidden
Rattrapante only…
By: aaronm : April 28th, 2024-22:23
I’ve seen this in other split second pocket watches, always on the tongs, but never in other movements. There was a brief attempt at helical mainsprings in the 19 th c, but it died fast. A