Winding: automatic

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

Power Reserve: 42 hours

Accuracy: -10/+30 seconds / day

Jewels: 24

Service every 6–8years

Calibre Miyota 9039 premium

Japanese made

Thickness: 3.9

central hr

central min

central sec

Watch brands using this movement: No-date micros

Reliability: Very high

Notes: Sweet-spot premium workhorses