User Manual

JS50 / JS54 Operating Instructions (Chronograph)

1. Pull the crown out to the 1st Click Position.

2. Press button “A” to set the stop watch second hand to the ZERO

position.

*The stopwatch minute hand is synchronised with stopwatch second hand.

*The stopwatch second hand can be advanced rapidly by continuously

pressing button “A”

3. Once the hands have been zeroed, reset the time and return the crown

to its normal position.

Hour hand

Chronograph

hour hand

Chronograph

second hand

Chronograph

minute hand

Second hand

or 1/20 chronograph hand