@sunnfjordingDet gjelder nok ikke samtlige Powermatic, men enkelte.
Beklager, jeg glemte kilder til min påstand:
ETA caliber C07.111 » WatchBase
Full details and images of the ETA caliber C07.111, including a list of all watches using this movement.watchbase.comTissot Caliber Powermatic 80 Watch Movement
Manufacturer Tissot Caliber Number Powermatic 80, Powermatic 80.111, PM80 Base Caliber ETA C07.111 (based on the ETA 2824-2) Lignes 11.5''' Diameter 25.6mm Height 4.6mm (needs confirmed) Jewels 23 or 25 Power Reserve 80 hours Lift Angle Unknown Vibrations Per Hour 21,600 bph, 3Hz Anti-Shock...calibercorner.com