Altitude Chronograph GMT

The Altitude Chronograph GMT is the ultimate evolution of Bremont’s aviation tool watch — combining the proven resilience of the MB series with the added functionality of a chronograph and GMT complication.

Beneath the surface, the automatic movement is suspended within a flexible rubber mount to absorb shocks and minimise impacts. The Altitude Chronograph GMT has an open case-back, revealing the movement’s fine finishing in gunmetal grey with Geneva Stripes. The open case-back retains the anti-magnetic shielding, which is provided by a soft iron ring around the movement, based on Faraday Cage principles.

The dial design is clean, legible, and cockpit-inspired, with applied Super-LumiNova® numerals and indexes, and recessed chronograph subdials. A red-tipped GMT hand tracks a second time zone against a 24-hour day/night scale, while the rotating seconds subdial at 9 o’clock takes the form of a tri-blade propeller — a nod to a Bremont military project.

Movement: Bremont BC781AC automatic chronometer, 62-hour power reserve
Functions: GMT, chronograph, date at 6 o’clock
Case: 42 mm 904L stainless steel with brushed black DLC barrel
Dial: Brushed silver with Super-LumiNova® accents and red-tipped GMT hand
Crystal: Box sapphire, anti-reflective
Water Resistance: 10 ATM / 100 m
Strap: Black nubuck leather with white stitching