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JS20

Small Second Chronograph

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Movements List

Chronograph that measures time using a small seconds hand. Notable for the satisfying click feel of the
push button.

Size
12 1/2’’’
Height
4.18mm
Accuracy
±20 sec per month
Battery Life
3 years
Balance Weight
Minute 0.40 μN.m
Second 0.09 μN.m
Small 0.02 μN.m
Function
Chrono 30min/sec, 24 hour
Documents

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Feature

Shock detection
Parallel push button

Parts List/Exploded View

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Click here to download the Parts List PDF file

Parts List