One of the favorites is the Tudor Black Bay GMT with the riveted steel bracelet inspired by those of the 1950s and 1960s.
The Tudor Black Bay GMT is powered by the new in-house automatic caliber MT 5652 introducing a new function to the Tudor movement portfolio. The GMT or second time zone is shown using an additional hour hand rotating in 24 hours and is read on the two-tone bezel showing day and night. Beating at 28,800 vibrations/hour, caliber MT 5652 can store up to 70 hours of power reserve. The variable inertia balance wheel (with a non-magnetic silicon balance spring) is held under a full cock. It has hacking feature ( stop-second) which allows for precise time setting and is also certified as a chronometer by the COSC.
Leather or fabric strap options (with folding buckle) are also available.