OMEGA GLOBEMASTER CO-AXIAL MASTER CHRONOMETER STEEL Omega, "Constellation Globemaster Co-Axial Master Chronometer, No. 87712809, Ref. 13030392. Made circa 2016. Very fine, large, center seconds, self-winding, water-resistant Chronometer wristwatch with date and a stainless steel Omega link bracelet with concealed double deployant clasp. Accompanied by the original fitted box, Guarantee, Chronometer Certificate and 4 additional links. Three-body, polished and brushed, fluted bezel, transparent case back with 4 screws, sapphire crystals. Matte silver with applied luminous steel baton indexes, outer minute/seconds divisions, aperture for the date. Luminous steel baton hands. Cal. 8900, rhodium-plated, fausses cotes and oeil- de-perdrix decoration, 39 jewels, two barrels, co-axial escapement, monometallic balance, self-compensating free-sprung flat balance spring, shock absorber, hack mechanism.