Omega Planet Ocean 600M Co-Axial Master Chronometer Watch - 39.5 mm Steel Case - Unidirectional Diamond Bezel - Black Dial - Black Leather Strap - 215.18.40.20.01.001 under-50000 It's a testament to Rolex's

It's a testament to Rolex's legacy

while the screw-down crown enhances its water resistance up to 100 meters

scratch-resistant sapphire crystal anti-reflective treatment on both sides

5-stripe black and grey NATO strap

Clasp Folding Oysterlock safety clasp with Rolex Glidelock extension system

Omega Planet Ocean 600M Co-Axial Master Chronometer Watch - 39.5 mm Steel Case - Unidirectional Diamond Bezel - Black Dial - Black Leather Strap - 215.18.40.20.01.001 under-50000 It's a testament to Rolex's39. 5 mm stainless steel case with helium escape valve, transparent screw in back, screw in crown, unidirectional rotating bezel set with diamonds, domed scratch resistant sapphire crystal with anti reflective treatment on both sides, black dial with Arabic numerals and a date window at the 3 oclock, caliber 8800 self winding Co Axial chronometer movement with date function, approximately 55 hours of power reserve, black leather strap with rubber