Oris’ mission to bring Change for the Better has united with the Common Wadden Sea Secretariat and its efforts to conserve the Wadden Sea, the world’s largest tidal system and a UNESCO World Heritage Site which sits in the northwest region of the Netherlands and is a vital stopping point for more than 10 million migratory birds every year.

The Dat Watt Limited Edition is a special dive watch. Rendered in a handsome gradient of blue and gray, its dial displays the lunar cycle and tidal range in the Northern Hemisphere via the Oris-developed Pointer Moon function, created for professional divers. This works using a central white pointer hand that once aligned with the correct day in the 29.5-day lunar cycle, shows the corresponding tidal range via the white outline on the dial. The same hand indicates the waxing and waning of the moon. 

Limited to 2,009 pieces to mark the year the Wadden Sea was awarded UNESCO World Heritage Site status.

Specifications:

• Case: 43.5mm multi-piece stainless steel
• Bezel: Uni-directional rotating with brushed stainless steel insert and 60 minute dive scale
• Dial: Gradient blue & grey with SuperLuminova on hands & hour markers
• Sapphire Crystal front, engraved stainless steel caseback
• Movement: Oris 761 Automatic (hours, minutes and seconds, centre hand moon phase, date window, instantaneous date, date corrector, fine timing device and stop-second)
• Power reserve: 38 hours
• Water Resistance: 300 meters
• Strap: Stainless steel bracelet
• Limited to 2,009 pieces