CaliberDB

ETA 2722

Mechanical c. 1969 Self-winding (rotor)
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Notes

1969-1972, < 50000 (ETA 2722, 2724, 2728) first ETA calibre with 28800 A/h

Dimensions

Width25.6 lignes (57.75 mm)
Height4.5 mm
Stem height1.2 mm
Hands (H × M × S)1.5 × 0.9 × 0.21 mm

Technical data

Beat rate28,800 vph (4 Hz)
Lift angle52 °
Power reserve42 h
Jewels—
Shock protection—
Mobile stud carrierNo

Complications

Self windingRotor
Date No
Day No
HackingNo
ChronographNo

Mainspring

GR code—
Height1.22 mm
Thickness0.14 mm
Length380 mm
Barrel diameter—