OMEGA Speedmaster Moonwatch Professional

Omega's Speedmaster Moonwatch Professional, reference 310.20.42.50.02.001, is a chronograph with a 42 mm case in steel and Moonshine gold. The case measures 13.18 mm thick with a lug-to-lug of 47.5 mm. A sapphire crystal with anti-reflective treatment inside covers the silver dial. Inside is the manual-winding calibre 3861, a Master Chronometer movement with Co-Axial escapement, resistant to magnetic fields up to 15,000 gauss and offering 50 hours of power reserve. The chronograph function pairs with a tachymeter scale and small seconds, and the display back shows the movement. A steel and Moonshine gold bracelet closes with a foldover clasp with comfort setting. Water resistance sits at 50 metres.