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Horological Meandering

Since most manual wind watches do not have constant-force mechanism

 

I recall Philippe Dufour mentioning in an interview that he winds his Datograph twice a day. It makes sense to not let the power reserve go lower than the half-way point as the chronometric performance will degrade due to the lower torque in all watches except those that are equipped with a constant-force mechanism to ensure linear delivery of power.


Best to wind it every 12 hours therefore. Some models from brands also incorporate a stop function essentially to arrest the balance spring before the power reserve empties, to avoid poor chronometric performance.

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