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The Sellita SW330-2 is essentially the exact same movement as the ETA 2893-2, and while it is considered to be somewhat of a known quantity within the luxury watch industry, there are also multiple different grades available. Inside the Formex Reef GMT is the Swiss-Made Sellita SW330-2 automatic movement, which runs at a frequency of 28,800vph and offers users a power reserve of approximately 56 hours.

Additionally, a 24-hour scale sits along the interior of the applied hour markers, and this enables the Formex GMT to track two different timezones with just its dial and hands, freeing up its bezel to be used for quick access to a third. Hand-applied angular hour markers are filled with Grade A Super-LumiNova BGW9, and they work in conjunction with the four centrally mounted hands to offer a blue glowing display of the time in dark environments.

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Dial colors include black, white, and green, and the six total options can be found with different finishing on their hour markers and with different splashes of color for the “GMT” text that appears above the date windows located at 6 o’clock. Furthermore, the Reef GMT uses the same tool-free interchangeable bezel system as the current Reef diver, and although the motion of the bezel is determined by the case of the watch itself, the bezels (which feature either brushed steel or zirconium oxide ceramic inserts) will be interchangeable between Formex Reef models, and they will be available for purchase separately to enable additional customizability.Īll of the different dials fitted to the new Formex Reef GMT Automatic Chronometer 300M watches feature color-matched date wheels, and both components are produced entirely in-house by Formex’s own dial factory located in the Jura mountains of Switzerland. Generally speaking, display casebacks often slightly add to the overall height of a watch, yet the Formex Reef GMT still measures the same 11.4mm thickness as its dive watch sibling, and it even offers the same 300 meters of water resistance. Fitted above the dial is a scratch-resistant sapphire crystal with five layers of anti-reflective treatment on the inside, and unlike the Reef dive watch, the new GMT model also features a second sapphire crystal set into the center of its exhibition-style caseback. The case of the Formex Reef GMT Automatic Chronometer 300M measures 42mm in diameter by 47mm lug-to-lug, and it follows the collection’s signature symmetrical profile that extends on either side at the 3 and 9 o’clock locations to offer protection for the screw-down winding crown and to create a distinct overall appearance. Additionally, rather than being a single model, the Formex Reef GMT Automatic Chronometer 300M is offered with the option of six different dials and six different bezels - and since the Reef GMT uses the same patented interchangeable bezel system as the Reef diver, the actual number of configurations that will be available will be rather extensive once you factor in all of the different straps and bracelets that are cross-compatible with the watches from the existing Reef range. Swiss watch manufacturer Formex seems to recognize this and has just unveiled a GMT version of its fan-favorite Reef dive watch that expands upon the existing range by introducing a new mesh bracelet to the collection, along with the ability to simultaneously display three different timezones.

Other than a date display or possibly a chronograph, it’s hard to think of a feature on a watch that has more practical applications in people’s everyday lives than the classic GMT complication.

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