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OMEGA constellation deville seamaster speedmaster specialities
Speedmaster 39 mm, steel on leather strap - 3834.78.38 - Image 1

Speedmaster 39 mm, steel on leather strap

Reference
3834.78.38
Between lugs
18 mm
Case diameter
39 mm
Case
Steel
Dial colour
White
Crystal
Scratch‑resistant sapphire crystal
Water resistance
10 bar (100 metres / 330 feet)
Watch size
Ladies
Total product weight (approx.)
76 g
Calibre
Omega 3220
Movement Type
Self winding
Power reserve
40 hours
Strap type
Leather strap
Strap surface
Alligator leather
Buckle type
Foldover clasp
Buckle material
Stainless steel
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.