Winding: automatic

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

Power Reserve: 78 hours

Accuracy: -4/+6 seconds / day

Jewels: 26

Anti-shock: Incabloc

Calibre B31 manufactured by Sellita

Swiss made

Thickness: 4.8

central hr

central min

central sec

date at 3

Watch brands using this movement: Breitling