Omega Speedmaster Professional Sapphire Sandwich SS Black Dial

Introduced in 2021, the Omega Speedmaster Professional Moonwatch reference 310.32.42.50.01.002—often dubbed the “Sapphire Sandwich”—delivers a compelling blend of horological heritage and modern performance. Housed in a 42 mm asymmetrical stainless steel case with a 13.18 mm thickness and 47.5 mm lug‑to‑lug span, this model preserves the classic Moonwatch proportions while benefiting from contemporary refinements. The matte black stepped dial, complete with applied baton indices and the iconic “dot over 90” tachymeter bezel, evokes the fourth‑generation Speedmaster aesthetic. Behind a sapphire display caseback resides the METAS‑certified Co‑Axial Master Chronometer Calibre 3861, offering a 50‑hour power reserve, 3 Hz frequency, and resistance to magnetic fields up to 15,000 gauss. As a manually wound chronograph with small seconds, 30‑minute and 12‑hour counters, it honors the Moonwatch’s legacy while delivering precision and durability. The stainless steel case is paired with an added Omega stainless steel bracelet. Water resistance stands at 50 meters, suitable for everyday wear. This reference is not a limited edition, yet its Sapphire Sandwich configuration and Master Chronometer certification make it a standout within the Speedmaster lineage, appealing to collectors who value both authenticity and technical advancement. Like New with Omega box and papers dated 2021.