The Speedmaster Calibre 321 series embodies the historic link between OMEGA and the world of space exploration. A legendary calibre that has been a part of all six moon landings, it remains a favourite and cherished piece of watchmaking heritage amongst fans and collectors around the world. Today, 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. 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.