Omega Planet Ocean 600 M Omega Co-axial Master Chronometer Watch - 43.5 mm Steel Case - Unidirectional Black Ceramic Bezel - Black Ceramic Dial - 215.30.44.21.01.001 Annual Calendar approximately 52 hours of power

approximately 52 hours of power reserve

sun-brushed chestnut dial with polished Roman numeral hour markers and cabochons

caliber 8923 self-winding Co-Axial master chronometer movement with date and annual calendar functions

Brand Audemars Piguet Series Royal Oak Offshore Model Number 26231OR

37 mm hammered 18K white gold case

Omega Planet Ocean 600 M Omega Co-axial Master Chronometer Watch - 43.5 mm Steel Case - Unidirectional Black Ceramic Bezel - Black Ceramic Dial - 215.30.44.21.01.001 Annual Calendar approximately 52 hours of power43. 5 mm stainless steel case with anti magnetic properties and helium escape valve, transparent back, screw in crown, unidirectional rotating black ceramic bezel with Liquidmetal diving scale, domed scratch resistant sapphire crystal with anti reflective treatment on both sides, black ceramic dial, caliber 8900 self winding master co axial chronometer movement with date window at the 3 oclock, approximately 60 hours of power reserve, stainless steel