.A technical question: A couple of days ago I built a new mod and changed hands on a movement that works perfectly well (+1 sec./day) on the balance side (according to my timegrapher) but now loses about 15-20 minutes per hour(!) on the hands' side. Any idea, where this strange behaviour might come from?
- "Balance Side" = Dial UP
- "Hands Side" = Dial DOWN
Is this correct?
1. If the dial feet are broken or removed and you forget to use adhesive 'Dial Dots' to attach the dial, the dial will fall onto the hands when the watch is turned Dial Down. This will impede the movement of the hands and may cause the watch to lose time.
2. If the dial attachment screws are not tight, the dial may remain loose and when the watch is turned Dial Down, the dial could fall onto the hands and impede their movement.
3. It is not unusual for a Balance Staff Pivot to be broken yet the Balance continues to turn fairly precisely when it is rotating on the undamaged pinion.
If a Balance is installed improperly you can break or bend a pivot and you may not notice this because it is very small.