Apologies in advance if this is a stupid question.
From what I understand, the 5712 has a unidirectional rotor.
I have recently started to put mine on an Underwood winder, which goes 30 minutes clockwise, then 30 minutes counterclockwise, then stops for 3 hours before repeating the cycle.
I noticed that the watch loses around 10 hours of power reserve each day when on the winder.
Is this normal? Will getting a unidirectional winder help?
Many thanks in advance for your help & comments.