OMEGA Speedmaster Calibre 321 Ed White Watch 311.30.40.30.01.001

The OMEGA Speedmaster Calibre 321 39.7mm (Ref. 311.30.40.30.01.001) represents the triumphant return of the most significant movement in space exploration history, meticulously recreated using tomography scans of original movements to ensure absolute dimensional accuracy. This faithful reproduction of the chronograph that powered every lunar mission combines historical authenticity with modern manufacturing excellence including 18K Sedna™ gold PVD coating visible through the sapphire caseback.

At 39.7mm with third generation case proportions, this matches the exact Speedmaster worn by astronaut Ed White during America’s first spacewalk in 1965. The straight lugs and 19mm lug width maintain authentic architecture whilst the black step dial recreates the complex construction that created visual depth through recessed subdials rather than printed rings.

The reconstructed Calibre 321 features original column wheel architecture and Breguet balance spring, now enhanced with 55-hour power reserve exceeding original specifications. Hand-assembled by individual watchmakers using period-correct techniques, this maintains the human element that characterised original production whilst benefiting from contemporary manufacturing tolerances and modern lubricants.

The polished black ceramic bezel with white enamel tachymeter scale addresses vintage aluminium’s vulnerability to fading and scratching whilst maintaining period-correct aesthetics. The ceramic offers virtually scratch-proof durability with permanent enamel markings that ensure functional capability throughout ownership.

This Speedmaster Calibre 321 suits buyers seeking authentic lunar mission connection rather than tribute styling. The movement that survived NASA’s brutal qualification testing and accompanied every moon landing provides unparalleled space exploration provenance in faithful modern recreation form.