Boss Watch - Models with Moon Phase Indicator, Small Seconds and Big Date

2120
AUTOMATIC WATCHES
Models with Moon Phase Indicator, Small Seconds and Big Date
Large date
corrector
Moon phase
corrector
Positions of the crown:
Position 1 - Normal position.
Crown pushed against the case.
To wind the movement by hard, turn the crown
clockwise approximately 20 revolutions.
Position 2 - To set TIME:
Rotate the crown in either direction.
To correct the MOON PHASE:
Use a pointed object like the tip of a pen
to depress the recessed corrector button at
4 o’clock. Each press and release will advance the
moon phase disk by one day in the lunar cycle.
To correct the BIG DATE:
Use a pointed object like the tip of a pen
to depress the recessed corrector button at
10 o’clock. Each press and release will advance
the big date display by one.