Hands-on: OMEGA Speedmaster “Ed White” Calibre 321 in stainless steel

In this 4-K video we present you the Omega Speedmaster Moonwatch Chronograph 39,7 mm – aka Ed White – in stainless steel powered by the Calibre 321. The original Omega Calibre 321 was the first movement ever used in the Speedmaster in 1957. Most famously, it was used in a variety of space-bound models including the Speedmaster ST 105.003 and the Speedmaster ST 105.012.

To discover the full background story of the Calibre 321 please do also watch this video https://youtu.be/zmjUSfVdsxE

Good to know…
was the model tested and qualified by and worn by astronaut Ed White during the first American spacewalk, was the first watch worn on the moon on the 21st of July, 1969…

The 39.70 mm case is made out of stainless steel and as already mentioned above inspired by the same 3rd generation style worn during America’s first spacewalk in 1965. That’s why this Speedmaster got the nickname “Ed White”. The chronograph features a bezel ring in polished black ceramic [ZrO2] with the tachymeter scale in white enamel.

Between lugs: 19 mm
Bracelet: steel
Case: steel
Case diameter: 39.7 mm
Lug-to-lug: 48 mm
Dial color: black
Crystal: Scratch resistant sapphire crystal with anti-reflective treatment only inside
Water resistance: 50 meters / 167 feet

Omega Calibre 321
Diameter: 27.00
Reserve: 55
Frequency: 18.000 A/h (= 2,5 Hz)
Hands: Small Seconds, Hours, Minutes

After extensive research and reconstruction in a dedicated workshop, the Calibre 321 has now been reborn in-line with its original specifications.

Using the 2nd generation Calibre 321 as a reference, the Omega team compiled extensive historical research and original plans to reconstruct the movement as accurately as possible. Going even further, they also used “tomography” technology (a digital scanning method) to see inside the true Speedmaster ST 105.003 timepiece that astronaut Eugene “Gene” Cernan wore on the moon during the Apollo 17 mission. Looking through into this historic timepiece was an incredible sight, and also provided invaluable dimensions and clues for the team to follow.

As a result, even the most unique and iconic parts of the Calibre 321 have been reborn in respect to their authentic specifications.

Going even further to protect its value, all aspects of creation are now undertaken within a dedicated Calibre 321 workshop at Omega’s watchmaking home in Biel/Bienne, Switzerland. For each movement, the assembly, as well as the subsequent watch head assembly is all performed by the same watchmaker, with two full days focused on each completed piece.