Omega Constellation Globemaster Co-Axial Master Chronometer Watch - 39 mm Sedna Gold Case - Fluted Bezel - Silvery Dial - Brown Leather Strap - 130.53.39.21.02.001 Special scratch-resistant sapphire crystal with anti-reflective

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

such as a Big Crown winding mechanism and Snowflake hands

A relatively new addition to the Tudor family

blue rubber-clad screw-locked crown

With a deep blue dial juxtaposed against a brown leather strap

Omega Constellation Globemaster Co-Axial Master Chronometer Watch - 39 mm Sedna Gold Case - Fluted Bezel - Silvery Dial - Brown Leather Strap - 130.53.39.21.02.001 Special scratch-resistant sapphire crystal with anti-reflective39 mm 18K Sedna gold case, transparent back set with an 18K Sedna 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).