Introduced as a sports chronograph in 1957, the very first Speedmaster, Ref no CK2915-1, featured a black dial with broad arrow hands, a tachymeter on the bezel, and the Calibre 321, developed by the legendary movement maker Albert Piguet in 1946, honouring Omega's position as the official timekeeper for the Olympics. The watch was iconic for several reasons, starting with the fact that this was the first time the tachymeter was being set on the bezel. Another was that the Calibre 321 would go on to power the watches worn during the Apollo missions, including all of the six moon landings.

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Paying tribute to this first Speedmaster in a sumptuous manner, Omega has introduced a new Speedmaster Calibre 321, complete with vintage details and a beautiful design in 18K Canopus Gold, Omega's own 18K white gold alloy. Set in a 38.6mm case, the dial employs multiple layers of onyx, which give this watch a high gloss and depth, finished with a classic OMEGA logo and typography featuring an oval “O" - a detail that was typical for the first CK2915 models. The hands and indexes are made in white gold and the hour markers have been given a Canopus Gold PVD coating. The tachymeter has been filled with black ‘Grand Feu’ enamel.

The timepiece also has three classic Speedmaster subdials, including a small seconds display, a 30-minute counter, and 12-hour counter, along with the central chronograph hand. Collectors and Speedy fanatics will notice a few more details, like the famous dot over ninety (as opposed to the dot at the upper right of 90 in the 1970 Speedy), a dot diagonal to seventy, and the Naiad symbol, a type of female spirit presiding over fountains, wells and other fresh water bodies, on the watch's crown (it referred to water resistance in some of the first CK2915 models).

Post 2019, Omega has resurrected the Calibre 321, retaining all the actual specifications and the addition of this calibre gives the watch a genuine connection to the heritage of the Speedmaster. Flipping the watch reveals the manual-winding chronograph movement with column wheel mechanism, with a Breguet balance-spring and 18K Sedna gold PVD coated finish. The watch has a power reserve of 55 hours and a frequency of 2.5Hz. Tribute continues in the form of the Omega Seahorse - a mascot used since 1957, it hads been placed inside the sapphire crystal glass, its eye made from a blue sapphire, a stone used to mark a 65-year celebration.

The Speedmaster Calibre 321 watch comes on an 18K Canopus Gold bracelet with a comfort release adjustment system. Given the occasion, the watch has been set inside inside a special box with a Rosewood-like pattern, its shape and design inspired by the original Speedmaster boxes of 1957.