Wyler Incaflex balance wheel. This was an early 'shockproof' system, to protect the delicate balance wheel pivots from being broken if the watch was dropped. The rim of the balance wheel is attached by curving springy spokes. If the movement receives a mechanical shock, the spokes will bend, allowing the wheel to rock back and forth rather than breaking the pivots.
Date
1 February 2006 (original upload date)
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No machine-readable source provided. Own work assumed (based on copyright claims).
Author
No machine-readable author provided. Sevesteen assumed (based on copyright claims).
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