This Lemania has the unusual calibre 3170. The watch is not running and the case needs restoring.

The movement is in very good condition, but the case has some bad corrosion marks and will be sent off to be restored with Replated in Canada

The third wheel has two driving wheels on one axel, the upper wheel drives the central seconds wheel and the lower drives the forth wheel.

The main difference between the 3060 and 3170, besides the plating colure, is that the 3060 has a Breguet Hairspring with a catch device for the hairspring and the 3070 has a flat hairspring with regular regulator pins. Here I can see that the hairspring moves freely.
Here you can see how the central second pinion is tensioned with a spring to make sure the second hand has a smooth action.
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