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OMEGA constellation deville seamaster speedmaster specialities
  • Speedmaster 42 mm, steel on steel - 311.30.42.30.01.001 - Image 1
  • Speedmaster 42 mm, steel on steel - 311.30.42.30.01.001 - Image 2

Speedmaster 42 mm, steel on steel

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Reference
311.30.42.30.01.001
Between lugs
20 mm
Lug‑to‑lug
48.2 mm
Case diameter
42 mm
Case
Steel
Dial colour
Black
Crystal
Domed anti‑reflective, scratch‑resistant sapphire crystal
Water resistance
5 bar (50 metres / 165 feet)
Watch size
Gents
Total product weight (approx.)
156 g
Calibre
Omega 1861
Movement Type
Manual‑winding
Power reserve
48 hours
Material
Steel
Type of Clasp
Foldover clasp
Product sheet

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 1861

Calibre 1861

Famous manual-winding chronograph movement. A descendent of the calibre that was worn on the Moon. Rhodium-plated finish.

  • Manual-winding
  • 48 hours Power reserve
  • Frequency 3 Hz
Calibre 1861