Nivada Grenchen 91951 Datomaster Mecaquartz Watch Instruction Manual

91951 Datomaster Mecaquartz Watch

Product Information

The DATOMASTER MECAQUARTZ is a watch that features various
functions and parts:

• 24 Hour Hand: Indicates the time in a 24-hour format.
• Chronograph Minute Hand (60m): Measures elapsed time up to 60
  minutes.
• Hour Hand: Indicates the hour of the current time.
• Minute Hand: Indicates the minute of the current time.
• Chronograph Seconds Hand: Measures elapsed seconds during
  chronograph operation.
• Band: The strap that holds the watch on your wrist.
• Case: The outer casing of the watch that protects the internal
  components.
• Pusher A: An upper button used for starting and stopping the
  chronograph.
• Crown: A knob used for adjusting various settings of the
  watch.
• Pusher B: A lower button used for resetting the
  chronograph.
• Date window: Displays the current date.

Product Usage Instructions

Setting the Date

1. Pull the crown out to the 2 position.
2. Turn the crown clockwise to adjust the date. Note: Avoid
   setting the date between 9 PM and 3 AM to ensure proper day
   change.
3. Push the crown back into the normal 1 position.

Setting the Time

1. Pull the crown out to the 3 position.
2. Turn the crown to set the minute and hour hands to the desired
   time.
3. Push the crown back into the normal 1 position.

Using the Chronograph

The chronograph function allows you to measure elapsed time up
to 60 minutes.

1. To start the chronograph, press the upper pusher A. The
   chronograph hands will begin to move.
2. To stop the chronograph, press the upper pusher A again. The
   chronograph hands will stop, indicating the elapsed time. The large
   central hand displays the elapsed seconds, and the sub-dial at the
   9 o’clock position displays the elapsed minutes.
3. To reset the chronograph, press the lower pusher B. All the
   chronograph hands will be reset to the 0 position.

DATOMASTER MECAQUARTZ Watch parts

24 Hour Hand Chronograph Minute Hand (60m)
Hour Hand Minute Hand Chronograph Seconds Hand
1

Band
Case
Pusher A
Chronograph Start/Stop
Crown
Pusher B
Chronograph Reset
Date window

DATOMASTER MECAQUARTZ Crown Position

1

2

3

1 Normal crown position 2 Setting the date 3 Setting the time

2

DATOMASTER MECAQUARTZ Setting the date

1

2

3

1. Pull the crown out to the 2 position.
2. Turn the crown clockwise for date setting.
Do not set the date between 9 PM and 3 AM, otherwise the day may not change properly.
3. Push the crown back into the normal 1 position.

3

DATOMASTER MECAQUARTZ Setting the time

1

2

3

1. Pull the crown out to the 3 position. 2. Turn the crown to set minute and hour hands. 3. Push the crown back into the normal 1 position.

4

DATOMASTER MECAQUARTZ Using the chronograph

THIS MODEL CHRONOGRAPH FEATURES STOPWATCH THAT CAN MEASURE UP TO 60 MINUTES.

1. To start the chronograph: Press the upper pusher A

A

The chronograph hands will begin to move.

2. To stop the chronograph: Press the upper pusher A again. The chronograph hands will stop and indicate the elapsed time. (Read the elapsed seconds on the large central hand and minutes on the sub-dial in the 9 o’clock position).
B
3. To reset the chronograph: Press the lower pusher B to reset the chronograph. All the chronograph hands will be reset to “0” position.

5