Timing
- Pressing once on the pushpiece at 2 o’clock activates
the chronograph. The central seconds hand turns, and
the minute and hour totalising counters will be running.
Pressing the pushpiece at 2 o’clock again will stop the
chronograph and give a time reading.
- Reset by pressing the pushpiece at 4 o’clock to make
another timing measurement.
- It is possible to accumulate timing measurements by
pressing the pushpiece at 2 o’clock again (without resetting
the counters). Timing starts again and is added to the
previous measurement.
Once the timing operation has been completed, move the
pushpieces into the compressed gasket (“closed”) position
by turning the wing-nuts a quarter of a turn upward, in the
direction shown by the single arrow.
Pulsometer
The pulsometer indicates the heart beats per minute of the
watch wearer.
The inner ring of the Master Compressor Diving Chronograph
watch is equipped with a heart rate reading scale, on the basis
of 30 observed beats.
Using the pulsometer
- Set both the chronograph pushpieces to the “open”
position by turning the wing-nuts a quarter of a turn
downward. The non-compressed gasket position (“open”)
will be indicated by a single arrow (front view of watch).
- Reset the seconds hand by pressing the pushpiece at
4 o’clock to be ready to make another measurement.
- Put your hand on a part of your body where you can easily
feel your heartbeats.
- Press the pushpiece at 2 o’clock once and count your
beats. The central seconds hand will turn (the minute and
hour totalising counters will also be running, but are not
used for this measurement).
- When you feel the 30
th
beat, press the pushpiece at
2 o’clock again to stop the chronograph.
- Read the number of beats per minute indicated by the
central seconds hand on the pulsometer ring scale.
- Set the pushpieces to the compressed gasket position
(“closed”) by turning the wing-nuts a quarter of a turn
upward, in the direction shown by the arrow.
Operating indicator
The aperture at 6 o’clock reveals a two-coloured luminous
disc which completes one revolution every 60 seconds. This
function, known as the operating indicator, indicates that the
watch is running.
Diving bezel
The Master Compressor Diving Chronograph watch model is
equipped with a one-way rotating bezel (can only be turned
anti-clockwise), with a mark every minute.
It can measure a particular time using the luminous white
triangular marking as a reference point in relation to the hour
hand or minute hand.
To move the diving bezel, you need only grip it with two
fingers and turn it anti-clockwise to the desired position.
Compressed gasket position
("closed")
Non-compressed gasket position
("open")
Example : the chronograph seconds hand
indicates 49 on the tachometric scale,
i.e. 49 beats per minute
M
aster
C
oMpressor
D
iving
C
hronograph
& gMt
- English
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