Description

The Omega Speedmaster Moonwatch Professional ref. 310.30.42.50.01.002 is the modern sapphire-crystal version of Omega's legendary space chronograph. Often referred to as the "Sapphire Sandwich," it features sapphire crystal on the front and an exhibition sapphire caseback displaying the METAS-certified Omega Calibre 3861 manual-wind movement. The classic 42mm stainless steel case, black step dial, and tachymeter bezel preserve the unmistakable Moonwatch design. Presented in excellent pre-owned condition. With its Master Chronometer-certified Calibre 3861, approximately 50-hour power reserve, and transparent caseback, this Speedmaster combines historic Moonwatch styling with modern Omega engineering.