OMEGA Speedmaster Moonwatch Professional

Omega's Speedmaster Moonwatch Professional, reference 310.60.42.50.99.002, is a 42 mm chronograph with a Moonshine gold case. The case is 13.18 mm thick and measures 47.46 mm lug to lug. Rated to 50 metres, it has a scratch-resistant sapphire crystal over the yellow dial and a display back. Calibre 3861 is a manual-winding movement with a Co-Axial escapement and a 50 hour power reserve. The calibre is certified as a Master Chronometer. A black ceramic bezel carries a tachymeter scale, and the dial has small seconds. The Moonshine gold bracelet has a foldover clasp.