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The introduction of a new GMT movement able to simultaneously keep the time in two time zones takes this heritage one step further. Yet the MBIII very much retains the classic DNA that has made the MB a must-have for any serious collector. It has been put through the same intensive, extensive testing schedule that includes shock, vibration, temperature extremes, and salt-fog tests.

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Technical overview


Modified calibre 13 1/4” BE-93-2AE automatic chronometer, 21 jewels, Glucydur balance, Anachron balance spring, Nivaflex 1 mainspring, 28,800 bph, 42-hour power reserve, Bremont moulded and skeletonised decorated rotor.


Hour/minute/second, date at 3H, 24H GMT hand.


Hardened stainless steel Trip-Tick® construction with case barrel in various colours. Inner soft iron anti-magnetic Faraday cage to protect movement. Protective patented anti-shock movement mount. Patented inner bi-directional Roto-Click® bezel. Operated by crown at 4H. Case diameter 43mm, lug width 22mm.

Case back

Stainless steel decorated case back with 6 stainless steel screws with polished heads.


Black metal dial with Super-LumiNova® coated hands and numerals.


Domed anti-reflective, scratch resistant sapphire crystal.

Water resistance

10 ATM, 100 metres.


C.O.S.C chronometer tested.


Calf-skin leather strap and and Temple Island rubber strap.


Individually serial numbered with accompanying C.O.S.C certification.

Strap options

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