Oris Aquis Depth Gauge Automatic Stainless Steel Black Dial Black Rubber Strap Date Divers Mens Watch 733 7755 4154 Set RS rpSKU_CBL2111.FC6453 Its impressive water resistance up to this ergonomic Freelancer GMT Its impressive water resistance up to a pressure of 30 bar (300 m 1000 ft) is combined with the energy of a Swiss made quartz movement coin edge bezel with a 60 minute scale on a blue top ring and yellow gold tone protected crown and inverted pushers for its chronograph functions the Aquis Depth Gauge uses the scientific principles of the Boyle Mariotte Law to create a patented gauge that clearly measures depth during a dive This watch runs on a Calibre 733 Swiss automatic movement with a 38 hour power reserve and is water resistant up to 500 meters 1650 feet