Omega

Calibre 321

Reference Number :

311.30.40.30.01.001

Series : Speedmaster

Retail: $15,400

(As of: 05/2024)

This watch is not for sale, this page is just for reference purposes only. If you would like to purchase this watch, please contact Omega. If you are interested in selling this watch to us, you can contact us here.

Quick TakeThe Omega Speedmaster Calibre 321 isn’t just a timepiece, it’s a conversation starter. The classic, black step dial with pops of white and vintage Omega logo evokes a sense of nostalgia, while the stainless steel case and polished black ceramic bezel exude modern sophistication. The watch’s functionality is as timeless as its design. The manual-winding chronograph movement and tachymeter bezel hint at its rich history, while the sapphire crystal and 50-meter water resistance ensure it can keep up with your active lifestyle. Whether you’re a history buff, a watch aficionado, or simply someone who appreciates quality and precision, the Omega Speedmaster Calibre 321 is a watch that tells a story on your wrist.

DescriptionThe Omega Speedmaster Calibre 321 is a chronograph wristwatch with a rich history in space exploration. The 39.7 millimeter case is crafted from stainless steel and features a polished black ceramic tachymeter bezel with a white enamel scale. The watch utilizes a manual-winding Omega Calibre 321 movement, which offers a power reserve of 55 hours. The black step dial showcases familiar Moonwatch hands and a vintage Omega logo. Additional complications include a small seconds sub-dial, a 30-minute recorder, and a 12-hour recorder. A scratch-resistant sapphire crystal with anti-reflective treatment protects the dial, and the watch offers water resistance up to 50 meters.

The Omega Speedmaster Calibre 321 boasts a number of technical specifications that contribute to its functionality and durability. The stainless steel case is resistant to corrosion and provides a foundation for the watch’s 50-meter water resistance rating. This rating signifies that the watch can withstand accidental immersion to a depth of 50 meters for up to 30 minutes. While not necessarily suited for professional diving, this level of water resistance allows the watch to be worn during activities such as swimming or showering. The scratch-resistant sapphire crystal is another testament to the watch’s durability. Sapphire is a second only to diamond in terms of hardness, making it highly resistant to scratches and abrasions that can mar the watch’s appearance. The anti-reflective treatment on the crystal further enhances readability by minimizing glare off the crystal surface.

The manual-winding Omega Calibre 321 movement is a noteworthy feature of the Speedmaster Calibre 321. A manual-winding movement requires the wearer to periodically crown the watch in order to maintain power reserve. To ensure timekeeping accuracy, it is recommended that the watch is wound at consistent intervals, ideally at the same time each day. The benefit of a manual-winding movement is its lack of reliance on a battery. Quartz watches, which are powered by batteries, typically need battery replacements every few years. Automatic watches, which rely on the wearer’s movement to generate power, can also require periodic maintenance. A manual-winding movement, by contrast, can theoretically function for decades or even centuries with proper care.

GenderMen

SignaturesOmega

Country of OriginSwitzerland

Case Size39.7 mm

MovementHandwound

Caliber321

FunctionsChronograph, Hours, Minutes, Seconds

Power Reserve55 Hours

Case MaterialsStainless Steel

Bezel MaterialsCeramic

Lug MaterialsStainless Steel

Case BackSapphire Crystal