Worldtimer Chronograph - Boss Watch Care And Maintenance, Operating Instructions

WATCHES WITH COMPLEX CHRONOGRAPH FUNCTIONS
Worldtimer ring
adjustment crown
Chronograph
minute hand
2nd time-zone
Chronograph
seconds hand
Positions of the crown:
Position 1 - Normal position.
Crown pushed against the case.
Position 2 - Setting the DAY*:
Rotate the crown counterclockwise.
Position 3 - Setting the TIME:
Rotate the crown in either direction.
*NOTE: If the date setting is performed between
9:00 pm and 3:00 am, it is possible that the date
will not be changed the following day.
Simple chronograph functions:
Measuring a single event without interruptions:
1. Press button A to start the chronograph.
2. Press button A a second time to stop
the chronograph.
3. Press button B to reset the chronograph to zero.
Clocking total time of a series of events of short
duration (for example, the exact playing time of
a soccer game which is frequently interrupted):
1) Push button A to start the chronograph at the
beginning of the game.
2) Push button A to stop the chronograph when the
game is interrupted.
3) Press button A when play resumes.
4) Repeat steps 2 and 3 until the end of the game.
5) Press button B to reset the chronograph to zero.

Worldtimer chronograph

Synchronizing the chronograph hands:
After a battery change or in case of error, it may be
necessary to adjust the seconds hand of the chronograph
to align it correctly to the zero position:
1. Pull the crown out to position 2.
2. Press button A to adjust the chronograph seconds
hand: Each press of button A will move the
chronograph hand forward one second.
Press button A and keep it pressed to make the
hand advance fast.
3. Once the hand is properly aligned, push the crown
back to position 1.
GMT functions:
- The red hand indicates a second time zone.
To set the second time-zone, pull the crown to
position 2 and rotate counterclockwise.
Then push the crown back to position 1.
Worldtimer functions:
- The crown at 10 o'clock rotates a graduated ring set in
the watch dial. It is not necessary to pull the crown to
rotate this ring.
- The user can instantly calculate the time in the
24 cities printed on the flange.
Simply align the figure "0" with your current city.
Then add the number corresponding to each city
to the local time to know the time instantly.
So in the diagram below, it is 10:10 am in London.
It is therefore 10:10 + 2 hours = 12:10 pm in Cairo
10:10 + 4 hours = 14:10 (2:10 pm) in Dubai
10:10 – 6 hours = 4:10 am in Chicago
16
A: Start/Stop
24 hours
B: Intermediate time /
Reset to zero
Small direct drive
seconds hand