CaliberDB

Ronda 1037-21

Mechanical Date Day
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Notes

in late samples glued hairspring terminal (cf. Ronda 1233-21) stem mechanism without setting-lever spring strange: train and hand gear separately driven by the barrel (cf. Ronda 9011)

Dimensions

Width23.3 lignes (52.56 mm)
Height4.8 mm
Stem height1.8 mm
Hands (H × M × S)1.8 × 1.3 × 0.2 mm

Technical data

Beat rate21,600 vph (3 Hz)
Lift angle—
Power reserve41 h
Jewels—
Shock protection—
Mobile stud carrierNo

Complications

Self windingNo
Date Yes (quick set)
Day Yes
HackingNo
ChronographNo

Mainspring

GR codeZf1035
Height10 mm
Thickness0.1 mm
Length360 mm
Barrel diameter1.4 mm