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Dan Henry 1972 Maverick Chronograph Day-Date instructions

Your Dan Henry 1972 is equipped with the Miyota 0S00 movement with a 12-hour chronograph, day & date, and tachymeter scale.


Setting the time:

1.1. Unscrew the crown.
1.2. Pull out the crown to the second click position.*.
1.3. Turn the crown to set the hour and minute hand.
1.4. Push in the crown to the normal position and screw in.
* If the crown is pulled to the second position while the chronograph is started, the chronograph hands will continue to move. This is not a malfunction.   

Setting the day & date:

2.1. Pull out the crown to the first click position 
2.2. Turn the crown counterclockwise to set the day.
2.3. Turn the crown anticounterclockwise to set the date.
Do not change the day-date when the hands are set between 9 PM and 3 AM, because the date may not change properly. To set the day-date during that time, first change the hands to any time outside of that range; then set the day-date and then reset the correct time. 2.3. Push in the crown to the normal position.
2.4. Push in the crown to the normal position.
2.5. Screw in the crown to keep your watch safe from water.

Using the chronograph

Your Dan Henry 1972 Maverick Chronograph features a stopwatch that can measure up to 12 hours.
The large central seconds hand count the seconds, the subdial at 12 o’clock shows the minutes, the subdial at 9 o’clock counts the hours.
To start the chronograph: press the top-right pusher. The chronograph hands will begin to move.
3.1. To stop the chronograph: press the top-right pusher again. The chronograph hands will stop and show the elapsed time.
3.2. To reset the chronograph: press button the lower pusher to reset the chronograph. All the chronograph hands will be reset to "0” position.

Using the tachymeter scale

The tachymeter scale can be used to compute a speed based on your time travelled. The tachymeter can also be used or measure distance based on speed.
To use the tachymeter for measuring speed: start the chronograph at the beginning of a 1-kilometer or 1-mile distance. At the end of the distance, the point on the scale next to the second hand shows your speed.
To measure distance: while traveling at a constant speed, start the chronograph at the beginning of the length to be measured. When the second-hand reaches the point on the tachymeter scale where the speed indicated equals the speed of the vehicle, one unit of distance (miles if speed is miles per hour, kilometers if kilometers per hour, etc.) has been covered.
For example, if you travel at a constant 80 mph (or at 80 km/h), then the distance traveled while the second-hand sweeps to "80" (45 seconds) will be exactly 1 mile at 80 mph (or 1 kilometer at 80 km/h).

How to reset the chronograph hands to zero

If the chronograph hands do not return to zero after timing, use this procedure to reset:
4.1. Pull out the crown to the second click position.
4.2. Press the top pusher to move the chronograph second hand until it returns to the zero position.
4.3. The chronograph hand can be advanced rapidly by continuously pressing the button.
    4.4. Once the chronograph hands are set to zero, return the crown to its normal position.

    Water resistance

    Water resistance: Your chronograph is safe for wear in a swimming pool, but not for scuba diving. The crown must be completely screwed in to ensure that the watch is water resistant
    Do not use the timing functions when the watch is wet or underwater.
    Do not wear your watch in a bath, shower or sauna; soap dries out the rubber seals, and your watch may lose its water resistance.

    Accuracy & battery replacement

    Accuracy: The accuracy of the movement is 20 seconds per month.
    Battery replacement: With normal use, the battery should last about two years.
    When the watch begins to run slow, this indicates that the battery should be changed. Use a ref. SR927W or 399 battery.
    Note: some collectors prefer to operate the chronograph full-time so they can observe the large central hand running constantly. Constant operation of the chronograph is OK for the watch but will may somewhat reduce the battery life. 
    If you need help, contact us at

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