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The legendary OMEGA Speedmaster is one of the world’s most iconic timepieces, having played a role in all six lunar missions. Powering this stainless steel model is the famous Calibre 321, the driving force behind the chronograph’s extraordinary space history.
"As a further tribute to Speedmaster history, the Calibre 321 in steel includes the classic ‘Dot over 90’ on the bezel"
The 321 is still highly sought-after by collectors around the world. As a tribute to its enduring popularity, OMEGA undertook extensive research and reconstruction in a dedicated workshop. Now, more than 50 years on from its last wave of production, the Calibre 321 has been reborn, in-line with its original specifications.
Recreating a Legend
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After more than 50 years, the iconic Calibre 321 is back in production! Every single movement is now crafted by an expert watchmaker inside our dedicated 321 Workshop.
By adding the mounted coq, including the famous Breguet spring, the watchmaker gives the Calibre 321 its beating heart.
One of the Calibre 321’s most essential parts – the Column Wheel – is delicately placed within the movement, including the setting of the endshake.
Fine tuning the pallets of the Swiss anchor. Every piece of the Calibre 321 has been recreated to its original specifications – the exact same design that went to the moon.
For the Calibre 321, the final checks are intense and uncompromising.
The finished piece. Discover the legendary Calibre 321 inside our special selection of Speedmaster watches.
"Ask most watch fans to name a famous movement they’d like to own and you’re bound to hear them mention the OMEGA Calibre 321"
Discover the first watch powered by OMEGA’s reborn 321. Crafted from a special platinum alloy with the use of gold (Pt950Au20), it features a black ceramic [ZrO2] bezel and tachymeter scale in white enamel.
The 321 premieres in platinum - Discover the watch