Winding: automatic

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

Power Reserve: 44 hours

Accuracy: -5/+5 seconds / day

Jewels: 25

Service every 6–8years

Calibre ETA 7750

Swiss made

Thickness: 7.9

central hr

central min

central sec

Date

Day

Chronograph

Watch brands using this movement: Breitling; IWC; Tudor (older), Junghans

Quallity tier: Chronograph workhorse

Reliability: Very high