Omega Constellation Globemaster Co-Axial Master Chronometer Watch - 39 mm Steel Case - Fluted Bezel - Silver Dial - 130.30.39.21.02.001 40 self-winding chronometer Omega 2500 movement

self-winding chronometer Omega 2500 movement with Co-Axial Escapement

yellow gold crown

chocolate dial

screw-down winding crown

black monobloc Cerachrom bezel with engraved tachymetric scale

Omega Constellation Globemaster Co-Axial Master Chronometer Watch - 39 mm Steel Case - Fluted Bezel - Silver Dial - 130.30.39.21.02.001 40 self-winding chronometer Omega 2500 movement39 mm stainless steel case, transparent back, fluted bezel, domed scratch resistant sapphire crystal with anti reflective treatment on both sides, opaline silver dial with Pie Pan design, caliber 8900 self winding Co Axial master chronometer movement with date function, approximately 60 hours of power reserve, stainless steel bracelet with slightly curved center links. Water resistant to 100 m (330 ft).