OMEGA Constellation

The Omega Constellation 131.30.41.21.99.001 is a 41 mm steel case watch with a tungsten bezel, matching steel bracelet and a grey dial protected by sapphire crystal. It is powered by the automatic Omega calibre 8923, a Master Chronometer movement offering 60 hours of power reserve and combining an annual calendar with a date display. The case back is transparent, allowing a view of the movement, and the watch is water resistant to 100 metres.