Speedmaster Calibre 321 'Ed White'

This modern steel Speedmaster returns to an earlier watch and an earlier movement. Its 39.7 mm case is smaller than the usual 42 mm Professional, with straight strap attachments and no broad protective shoulder around the crown. Inside is a newly made calibre 321, the hand-wound stopwatch movement used in the Speedmasters of the early space programme.

The “Ed White” nickname points to the astronaut who made the first American spacewalk in 1965. His Speedmaster belonged to the third generation, the reference 105.003, whose case shape informed this watch. Omega introduced the modern steel version in 2020. It is a reconstruction of that design lineage, not a surviving watch from White's flight.

The revived movement is the principal difference from a regular modern Moonwatch. The 321 coordinates its stopwatch using a small column wheel, a castellated component around which levers engage and release. Later regular-production Speedmasters adopted a different cam-controlled system. Through this watch's sapphire back, the old arrangement is visible in a newly manufactured mechanism.

The front keeps the clear black dial, pale hands and three counters. The seconds hand at nine runs with the time; the long central hand and the other two counters measure an event. A slight step separates the main dial from the outer minute track. These details make the face look familiar even before the case and movement differences are noticed.

Not every material is historical. The ring around the face is polished black ceramic with its speed scale in white enamel, and the front cover is sapphire rather than period acrylic. The watch combines an earlier case shape and movement architecture with modern surfaces.