Omega Speedmaster Professional Moonwatch SS Black Dial

The Omega Speedmaster Professional Moonwatch reference 310.30.42.50.01.002 is a modern continuation of the legendary chronograph lineage, featuring the METAS‑certified Master Chronometer Caliber 3861. Released in the early 2020s, this “Sapphire Sandwich” edition elevates the classic Moonwatch formula with a sapphire crystal front and exhibition caseback, offering a clear view of the beautifully finished movement. Its 42 mm stainless steel asymmetrical case retains the iconic “dot over 90” tachymeter bezel and stepped black dial, paying homage to the fourth‑generation Speedmaster worn on the lunar surface. The manual‑wound 3861 movement delivers a 50‑hour power reserve, anti‑magnetic performance, and chronometer accuracy, underscoring its technical pedigree. With a lug‑to‑lug of approximately 47.5 mm and a thickness of 13.2 mm, the watch balances presence and wearability. Water‑resistant to 50 meters, it remains true to the Moonwatch’s utilitarian roots while offering modern robustness. Collectors prize this reference for combining historical design cues with contemporary movement upgrades and a display back—making it both a nod to heritage and a statement of horological advancement. Like New with Omega box and undated papers.