OMEGA Speedmaster Dark Side of the Moon

Omega's Speedmaster Dark Side of the Moon, reference 310.92.44.51.01.002, is a chronograph with a 44.25 mm black ceramic case. It measures 15.09 mm thick with a 50 mm lug-to-lug span, and the dial sits under a sapphire crystal treated with anti-reflective coating on both sides. The self-winding calibre 9900 drives the watch, a column-wheel chronograph with co-axial escapement certified as a Master Chronometer and resistant to magnetic fields up to 15,000 gauss. Two barrels mounted in series give 60 hours of power reserve, and the movement adds a time zone function alongside small seconds and date. A sapphire window on the back shows the finish. The black coated nylon fabric strap closes on a ceramic foldover clasp. Water resistance is rated to 50 metres.