Functional, precise and reliable, these "wrist instruments" from the AirBoss collection have been designed with aeronautics professionals in mind. The bidirectional rotating flange can be used to calculate the countdown for aeroplane takeoff, while the push-buttons on the left of the chronograph and the overdimensioned crown make for easy adjustment.

Brand: VICTORINOX SWISS ARMY WATCH S.A.
Model: AirBoss
Movement: Mach 4 (left): Hand-wound, mechanical,
56-hour power reserve
Function: Hours, minutes, seconds, countdown
Case: Steel
Antiglare sapphire crystal
Screw-down back, mineral crystal
Water-resistant to 100 m
Dial: Black
Luminescent numerals, hour markers
and hands
Off-centre small seconds
Bracelet / Strap: Leather
Other version: Mach 3 (right): Chronograph with quartz movement
Mach 4: Limited edition of 100 watches,
yellow small seconds,
movement with C魌es de Gen鑦e decoration