OMEGA Speedmaster Moonwatch Professional

Omega's Speedmaster Moonwatch Professional, reference 310.60.42.50.02.001, is a chronograph with a 42 mm white gold case. The case is 13.18 mm thick and measures 47.5 mm lug to lug. Calibre 3861 is a manual-winding movement with a 50 hour power reserve, and it carries Master Chronometer certification. A domed sapphire crystal with anti-reflective treatment on the inside covers the dial, and the watch has a display back. The Speedmaster also has a tachymeter and small seconds. Omega rates the case to 50 metres. A white gold bracelet is fitted with a foldover clasp with comfort setting.