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Choose a truly iconic piece of space exploration history with the Speedmaster Calibre 321 collection. This series has incredibly recreated the legendary calibre that was worn during all six moon landings, and it remains a favourite and cherished piece of watchmaking heritage amongst fans and collectors around the world. <p> Available through the OMEGA online shop, the Calibre 321 has been reborn to its original specifications for a new generation of wearers. The pieces are housed inside a selection of Swiss‑made wristwatches in stainless steel or platinum. The chronographs deliver the ultimate feel of a vintage watch, while also offering special details of their own, such as meteorite subdials or scratch‑resistance sapphire crystal. <p> Of course, the iconic features are still there too, including refined black dials and polished black ceramic bezels adorned with a white enamel tachymeter scale. Inside is the emblematic manual‑winding chronograph movement with the same column‑wheel mechanism as the original. Choose your timepiece on a leather strap or classic metal bracelet. <p> Buy an OMEGA Speedmaster Calibre 321 watch directly from the OMEGA website through our online catalogue, where you will find the latest models on offer. Order now with just a few clicks.