M20 DSS GMT In-Depth

Watch Size 42mm
Watch Thickness 13mm
Band Width 22mm
Movement Swiss, Quartz Analog cal R515
Glass Sapphire
Water Resistance 200m / 660ft
Battery Silver Oxide Cell, ref 371


22mm Band Range

The M20 GMT Diver can be customized with additional bands.

Check out the 22mm Band Range


The M20 GMT Diver is the perfect do-everything watch. It features a Swiss-Made quartz GMT movement — meaning you can read a second time zone using the 4th hand and the 24-hour scale placed around the edge of the dial. The GMT complication was originally created for pilots who needed to track multiple time zones while flying but was quickly adopted by both businesspeople and explorers.

Don't let the sleek design fool you. The M20 GMT Diver is up to virtually any task, with its double-dome AR sapphire crystal, applied indices containing SuperLuminova luminous and 200M depth rating. The case has a diameter just under 42mm but feels smaller on the wrist than one might expect, due to its rounded shape. The M20 GMT Diver boasts both serious diving capabilities and the ability to track multiple time zones at once. Take the M20 GMT to your next meeting and on your next adventure.

The M20 Family also includes the classic M20 DSS Diver.

This watch comes standard with or has the option for an ultra-hard, sapphire crystal. This is dramatically more scratch-resistant than regular mineral glass and virtually impossible to scratch, ensuring a crystal-clear view of the time, year after year!

For more information, visit: What's the benefit of Sapphire Crystal

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