I was wondering are smaller rotors less efficient in winding a watch? I can wear my flat Glashutte Original for an hour and it will not start but I literally give my ETA one shake on the wrist and it comes back to life again.
Does this have to do with the efficiency of rotors? I noticed many watchmakers use the smaller rotors such as ALS, PP, VC etc. Is it any less efficient than a full size automatic rotor? What's your experience? Usually, how many rotor spins is sufficient to charge your watch?