Omega Constellation Globemaster Co-Axial Master Chronometer Watch - 39 mm Yellow Gold Case - Fluted Bezel - Silvery Dial - Brown Leather Strap - 130.53.39.21.02.002 HydroConquest a pinnacle of precision and

a pinnacle of precision and engineering

has a Titanium 42 mm Tonneau (Rectangle) Case with Screw Down Crown and a Titanium

a solid case back

Its scratch-resistant sapphire crystal protects the mesmerizing dial

this model features a gray and black dial with a fabric strap

Omega Constellation Globemaster Co-Axial Master Chronometer Watch - 39 mm Yellow Gold Case - Fluted Bezel - Silvery Dial - Brown Leather Strap - 130.53.39.21.02.002 HydroConquest a pinnacle of precision and39 mm 18K yellow gold case, transparent back set with a yellow gold central Observatory medallion, fluted bezel, domed scratch resistant sapphire crystal with anti reflective treatment on both sides, opaline silvery dial with Pie Pan design, caliber 8901 self winding Co Axial master chronometer movement with date function, approximately 60 hours of power reserve, brown leather strap. Water resistant to 100 m (330 ft).