Oris has introduced a limited-edition Aquis with a rather unique, gradient blue-gray dial (Ref. 761 7765 4185-Set) that was created in cooperation with the Common Wadden Sea Secretariat to support its mission to conserve the Wadden Sea, the world?s largest tidal system and a UNESCO World Heritage Site since 2009.

Based on the 43.5-mm Oris Aquis divers’ watch, the Dat Watt Limited Edition is named after a local dialect for the Wadden Sea. The 2,009 individually numbered pieces pieces mark the year the Wadden Sea was awarded UNESCO World Heritage Site status.

Dat Watt means ?the Wadden Sea? in Low German. We?ll be running some events together to raise awareness, and, importantly, funds raised by
sales of the watch will finance a project that we would not otherwise have been able to launch.? Bernard Baerends, executive secretary and head of the Common Wadden Sea Secretariat (CWSS)
In the central Wadden Sea, tidal ranges often exceed 3 meters. The Oris Dat Watt Limited Edition displays the lunar cycle and tidal range in the Northern Hemisphere via the brand’s Pointer Moon function. The central white pointer hand is aligned with the correct day in the 29.5-day lunar cycle and now shows the corresponding tidal range via the white outline on the dial. The same hand also indicates the waxing and waning of the moon.

The Aquis Dat Watt Limited Edition uses a gradient blue-gray dial, beautifully symbolizing the different types of tides. The bezel inlay...