Winding: automatic

Frequency - Variations per hour: 4Hz - 28800 V/h

Power Reserve: 70 hours

Accuracy: -2/+2 seconds / day

Jewels: 31

Anti-shock: Paraflex

Service every 10years

Calibre 3285, Rolex in-house manufacture

Swiss made

central hr

central min

central sec

date at 3

central GMT

Watch brands using this movement: Rolex GMT-Master II (ref 126710, 126711, 126713, 126715, 126718, 126720, 126729), Explorer II (ref 226570)

Reliability: Exceptional