II. M
EASURING AN INTERRUPTED SHORT TIME
1. Press pushpiece A to start the chronograph. Hand 3
allows you to follow the measurement in seconds.
2. t o interrupt the measurement, press pushpiece A
once more. t o restart the time measurement, press
pushpiece A. t his procedure makes it possible to
add several short times.
3. t he chronograph is reset to zero by pressing push-
piece B, once the final measurement has been stopped.
18
SPECIAL CHARACTERISTICS
CONVERSION SCALE FOR WEIGHTS AND MEASURES
USED IN AVIATION
A
t he scale engraved on the back of your watch allows you to convert five of
the weight and measurement units most commonly used in aviation.
Combined with the slide rule, it is a handy way of preparing a flight plan.
A
T
18 4
8
B
Example: multiply the number of UK gallons by 1.20 to determine the
equivalent value in US gallons, or by 3.65 to obtain the mass or weight in
kg of such a volume.
Important note: liquid to weight measurement conversions (Lb., Kg) relate
to Jet fuel (kerosene).
x
g al. UK US g al. Liter
Lb.*
g al. UK 1
1.20
4.54
8.05
US g al. 1/1.20
1
3.78
6.70
Liter
1/4.54
1/3.78
1
1.77
Lb.*
1/8.05
1/6.70
1/1.77
1
Kg*
1/3.65
1/3.04
1/0.80
2.20
19
Kg*
3.65
3.04
0.80
1/2.20
1