Pre-owned Omega Speedmaster Moonwatch Professional ref 310.60.42.50.02.001 (2022) is cased in the brand’s ultra-exclusive 18k Canopus Gold™, an alloy made of 75% white gold and undisclosed percentages of palladium, platinum, and rhodium. While it isn’t the first white gold Speedy, this model was the first to use the proprietary alloy. It’s also a sapphire sandwich model featuring scratch-resistant sapphire crystal on the front and back of the case. In 2021, Omega updated the entire Speedmaster collection, including the ref. 310.60.42.50.02.001 for sale here. It has a design inspired by the 4th-gen Speedy that went to the Moon with an aluminum Dot Over 90 bezel, a step dial, and an asymmetrical case. Furthermore, with this model comes a new bracelet and the next-generation caliber 3861 Master Chronometer with a Co-Axial escapement and accuracy between 0 and +5 seconds/day. Shop OMEGA Speedmaster Collection