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In the illustration above the mainspring link barrel is on the left the fourth wheel is on the right and is the only link train wheel except for the escape wheel which is visibly rotating. That wheel rotates once per minute and if you want to have a seconds hand the easiest thing to do is allow the lower pivot to extend to the dial side and put a link small hand on it Voila you have a seconds hand.
| 1 year ago. Rating: 0 | |
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