Franc Zabkar wrote:
My father gave me his gold watch, a 25 year old Omega analogue quartz.
It had been lying idle in his drawer with the time-setting pin
disengaged. After re-engaging the pin, the hands began advancing at 4
times the normal rate. After 1 hour it has gained 3 hours. I assume
the crystal is oscillating at a higher overtone, maybe due to a weak
battery.

In any case I now have a watch to match the reverse Dick Smith wall
clock above my desk. Maybe I should start collecting misbehaving
timepieces.

- Franc Zabkar

Have you thought of maybe changing the battery ?

geoff