Yema NAVYGRAF MARINE NATIONALE GMT L.E User manual

YEMA NAVYGRAF MARINE NATIONALE GMT L.E WATCHES

POSITION A SCREWED-DOWN POSITION
Your YEMA watch is equipped with a screw-down crown. A screw-down crown
ensures waterproofness by sealing the crown to the case of the watch.
POSITION B MANUAL WINDING
Your YEMA watch is equipped with a self-winding mechanical movement, this means is wound
automatically by wrist movements alone. To ensure optimum winding, wear your watch daily.
Before you first use the watch or if unworned for a long period of time, you will need to wind it
manually by unscrewing the crown and then turning it clockwise.

REFERENCE TIME
MORTEAU, FRANCE 10:10

POSITION C REFERENCE TIME SETTING
When travelling, to adjust reference time only (without affecting the local time display), unscrew the
crown and then pull it out to the first notch (POSITION C).
Set the reference time using the 24-hour hand that moves in increments of 30 minutes (against the
graduations on the bezel) and the minute hand (against the graduations on the dial) by turning the
crown clockwise.
IMPORTANT : If your GMT hand is off by one hour after adjustment, you will need to return to the
time-set position in order to turn the H+M hands again one hour forward then return to the desired
position before screw the crown back on. (This allows the cog to train well and not skip a tooth).
OR
You first index the GMT hand in relation to the number of hours of time difference desired, then set
H+M and GMT will follow.
Push in and then screw down the crown.

POSITION C RAPID DATE SETTING
If your YEMA watch is equipped with a date, to adjust the date, unscrew the crown and pull it out to
the first notch. Then simply turn it anti-clockwise until the desired date appears in the window. During
this operation, your watch will keep running.
IMPORTANT: Do not make date adjustments when the time on the watch reads between the hours
of 9:00pm and 3:00am. The reason is that although a date makes its changeover close to midnight,
the gears that make that change happen to engage quite a bit earlier. It takes extra time to disengage
completely in the aftermath.

LOCAL TIME
NEW-YORK, US 04 :10
REFERENCE TIME
MORTEAU, FRANCE 10:10

POSITION D LOCAL TIME SETTING
To set the local time, unscrew the crown and then pull it out to POSITION D. The seconds hand is
stopped, allowing you to set the time to the precise second.
Set the local time by turning the crown in either direction.. The hours and minutes hand move in
increments of one hour. The date is linked to local time and changes automatically when the hour
hand passes midnight.
Setting the local time also moves the GMT hand hand (reference time). For this reason, the local time
must be set before setting the reference time.

BEZEL
FUNCTION

LOCAL TIME
NEW-YORK, US 04 :10
REFERENCE TIME
MORTEAU, FRANCE 10:10
THIRD TIME ZONE
TOKYO, JAPAN 18:10