Winding: automatic

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

Power Reserve: 120 hours

Accuracy: -4/+6 seconds / day

Jewels: 21

Service every 10years

Calibre BM13-1975A , Baume & Mercier In-house manufacture

Swiss made

central hr

central min

central sec

Date

Watch brands using this movement: Baume & Mercier