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Calibre 321 Chronograph 39.7 mm

Steel on steel

311.30.40.30.01.001

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Description

Having been a part of all six lunar missions, the legendary OMEGA Speedmaster is one of the world’s most iconic timepieces. This model has reprised the famous Calibre 321, which was an important part of the Speedmaster’s original space history.

The 39.70 mm case is in stainless steel and is inspired by the same 3rd generation style worn during America’s first spacewalk in 1965. There is also a bezel ring in polished black ceramic [ZrO2] with the tachymeter scale in white enamel.

The black step dial features familiar Moonwatch hands, a vintage OMEGA logo, as well as a small seconds sub-dial, 30-minute recorder and 12-hour recorder along with a central chronograph hand. Through the sapphire-crystal caseback, you can see the Calibre 321 inside.

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5-Year Warranty

All OMEGA watches are delivered with a 5-year warranty that covers the repair of any material or manufacturing defects. Please refer to the operating instructions for specific information about the warranty conditions and restrictions.

Features

  • Chronograph

  • Small seconds

  • Tachymeter

  • Transparent case back

Technical Data

  • Between lugs: 19 mm
  • Bracelet: steel
  • Case: Steel
  • Case diameter: 39.7 mm
  • Dial colour: Black
  • Crystal: Scratch‑resistant sapphire crystal with anti‑reflective treatment inside
  • Water resistance: 5 bar (50 metres / 167 feet)

A new look for your watch

Your watch and strap should go together perfectly, but that doesn't mean you can't experiment with different combinations. Why not mix things up and see what happens? You may discover a look that's as individual as you are.

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Key materials

  • Material - Stainless Steel

    Stainless Steel

  • Material - Sapphire Crystal

    Sapphire Crystal

Stainless Steel

Stainless steel is certainly the most conventional of watchmaking materials for outer craftsmanship, and offers beauty, strength and affordability. OMEGA uses 316L stainless steel. Known for its corrosion-resistance and high lustre after polishing, this material is often the ideal choice for watches in both daily-use and high-stress situations such as diving and adventure.

Sapphire Crystal

To really appreciate the finer details of a timepiece, OMEGA uses synthetic sapphire crystal with a highly scratch-resistant and anti-reflective treatment. Before the machining and finishing processes take place, the sapphire crystals are produced under the Verneuil process, also called flame fusion. It involves the melting of the raw substance using oxyhydrogen flame and the crystallisation of the melted droplets to form a cylinder. Graded 9 on the Mohs-hardness scale (graded 1-10), the resulting sapphire crystals are virtually scratch-proof and very hard, ensuring an unhindered vision at all times.

Movement CALIBRE OMEGA 321

Calibre 321

Famous manual-winding chronograph movement with column wheel mechanism, Breguet balance-spring and 18K SednaTM gold PVD coated finish. The calibre that was worn on the Moon.

  • 55 hours Power reserve
  • Manual-winding
Calibre 321

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