Omega Constellation OMEGA Co-Axial Master Chronometer - 39 mm Steel Case - Silvery Dial - 131.10.39.20.02.001 B50 Proving that high performance design

Proving that high performance design can be incredibly stylish

annual calendar backward/forward setting with months counter at 9 o'clock

Split-Seconds Chronograph

322 automatic movement with hours

Omega Constellation OMEGA Co-Axial Master Chronometer - 39 mm Steel Case - Silvery Dial - 131.10.39.20.02.001 B50 Proving that high performance design39 mm steel case with anti magnetic protection, transparent back, bezel engraved with Roman numerals, domed scratch resistant sapphire crystal with anti reflective treatment on both sides, sun brushed silvery dial with date at 6 oclock, Calibre Omega 8800 self winding co axial master chronometer movement with date, approximately 55 hours of power reserve, steel bracelet. Water resistant to 50 metres (167 feet).