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ALT1-Z Dark Grey


The Bremont ALT1-Z was designed with aviators and world travellers in mind. Z stands for ‘Zulu Time’ and allows the wearer to display local time together with the official world time standard: Universal Time Coordinated (UTC), Greenwich Mean Time (GMT), or even Zulu time (Z). UTC replaced GMT in 1972 as the international reference standard for communications, military, aviation, maritime and other activities that span multiple time zones.

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Technical overview


Modified calibre 13 ¼''' BE-54AE automatic chronometer, 25 jewels, Glucydur balance, Anachron balance spring, Nivaflex 1 mainspring, 28,800bph, 42 hour power reserve. Bremont moulded and decorated skeletised rotor.


Hour/minute/second, date at 3H, chronograph small counters with seconds 30 minutes and 12 hours, 24 hour UTC hand.


Hardened stainless steel Bremont Trip-Tick® construction with scratch resistant DLC treated case barrel. Case diameter 43mm, lug width 22mm, case thickness 16mm. Patented inner bi-directional Roto-Click® bezel. Operated by crown at 8H.

Case back

Stainless steel with integrated flat crystal, 5 stainless steel screws with polished heads.


Metal dial with various ground colours. Coated nickel hands with Super-LumiNova® C1 luminous coating.


Domed anti-reflective, scratch resistant sapphire crystal.

Water resistance

10 ATM, 100 metres.


C.O.S.C chronometer tested.


Calf-skin leather with solid deployment buckle and engraved security clasp.


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

Strap options

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