Montblanc MB M13.21 Manual Del Usuario página 12

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Calibres MB M16.29 and MB M16.24
Chronographe Monopoussoir
Available in the 1858 and TimeWalker Collections
A
D
P1
E
B
F
C
A
D
A: Hours hand
B: Minutes hand
C: Chronograph direct-drive seconds hand
D: Continuous seconds hand
B
C
P1
E
F
P1
E
G
C
F
D
E: Minutes-counter hand (30 minutes)
F: Tachymetric or pulsometer scale
G: Hours and minutes hand (24-hour display)
P1: Monopusher
Crown
1: Running and manual winding position. To rewind, rotate crown clockwise
2: Setting the time.
Pull the crown out to position 2 to set the time. You can turn the crown in either direction.
Normal chronograph function
a) Starting the chronograph
Press the monopusher (P1) a first time to set the chronograph direct-drive seconds hand (C) and the
minutes-counter hand (E) in motion.
b) Stopping the chronograph
Press the monopusher (P1) again to stop the chronograph hands. Now, you can read the elapsed time.
The chronograph direct-drive seconds hand performs one full revolution in 60 seconds. When the
direct-drive seconds hand passes the 12 o'clock marker, the minutes-counter hand (E) advances by one
graduation (1 minute). It can count up to 30 minutes.
To measure longer intervals, make a note of the number of full revolutions of the minutes-counter hand.
c) Resetting the chronograph to zero
After you have completed the measurement, press the monopusher (P1) a third time to reset the
chronograph direct-drive seconds hand and the minutes-counter hand to zero. This prepares your
chronograph for a new measurement.
Tachymeter display and functions
The tachymetric scale (F) serves to measure the average speed of a vehicle, for example, over a given distance
(a kilometre or a mile), and the time elapsed. Start the chronograph function at the beginning of the first
kilometre or mile. Stop the chronograph when you reach the end of the chosen distance. The tip of the direct-
drive seconds hand (C) shows the average speed of the vehicle.
Pulsometer display and functions
The pulsometer scale is graduated for 30 pulsations. Start the chronograph function when you begin to feel
the pulse. Stop the chronograph at the thirtieth pulsation. The tip of the direct-drive seconds hand indicates
the point on the pulsometer scale displayed around the dial perimeter that shows the corresponding number
of pulsations per minute.
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