The ‘GMT’ function is one of the most popular complications in watchmaking. By using the fourth ‘GMT’ hand – which travels around the dial over 24 hours – it’s possible to tell the time in any timezone around the world accurately. GMTs have always been popular with Christopher Ward customers too, with models like the C60 Trident GMT 600 consistently among our best sellers.
This guide will help you make the right decision.
Pro diver or part-time dipper?
If you want a professional diving tool, the C60 Elite GMT 1000 should be your first choice. Engineered from Grade 2 titanium – which has the highest strength-to-density ratio of any metal – it’s waterproof to 1000m. There’s also a helium release valve which will aid the release of harmful molecules as you ascend from an ultra-deep dive.
While the new C65 GMT Worldtimer isn’t primarily a diving watch, it’s still water-resistant to 150m – easily enough for all but the most ambitious of subaqua expeditions. And perfect if your idea of a dive involves popping into the deep end of your local swimming pool.
Retro chic vs modern tool watch
The inspiration for the C65 GMT Worldtimer’s design is the aeronautical watches of the mid-1960s. From the unfussy dial design to the vintage-style glass box crystal, this is a slim timepiece that will work with any outfit – and at 41mm wide it’ll suit all wrists.
The C60 Elite GMT 1000 is a vehemently modern watch. It’s countdown diving bezel is made of ceramic with Super-LumiNova®-filled numerals to ensure visibility in low light. Built to withstand the incredible pressure found at 1000m, it’s chunkier than the Worldtimer, and also a little larger, at 42mm across.
Battle of the bezels
As a pro-level diving watch, the C60 Elite GMT 1000 boasts a countdown bezel: a vital tool for timing your dive. But as this is a GMT, it also has something else: an inner “bezel” which you use with the fourth GMT hand to tell the time in another part of the world.
The C65 GMT Worldtimer also has two bezels, but the outer one features the names of international cities around the world. Say you’re in London but want to know the time in Tokyo. Line up ‘London’ on the bezel with the current time on the inner 24-hour bezel, and then search out ‘Tokyo’. It’ll correspond to the correct time. If you want to use the GMT to monitor the time in another timezone (say, New York), just set the fourth hand to its time on the inner bezel. It’ll always stay in step.
Different watches – same movement
If you value near-perfect accuracy, the Sellita SW330 GMT movement that powers both watches will be your trusted friend. Not only does it run a GMT function as a certified chronometer, it’s among the top six per cent of movements for accuracy. So wherever you are – or wherever you want to be – you’ll always be on time.