Seamaster 37.4 mm, steel on steel

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Reference: 2521.81.00
Case diameter Open Case Measurement Modal: 37.4 mm
Case: Steel
Dial colour: Blue
Crystal: Domed anti‑reflective, scratch‑resistant sapphire crystal
Water resistance: 12 bar (120 metres / 400 feet)
Watch size: Gents
Total product weight (approx.): 125 g
Calibre: Omega 1665
Movement Type: Quartz
Battery life: 22 months

Material: Steel
Type of Clasp: Sliding clasp

Calibre OMEGA 1665 Quartz multifunction movement.

Product sheet

Key materials

Stainless Steel
Sapphire Crystal

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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.
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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.

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.

The advantages
of this watch

When it comes to reliability there’s no matching a movement bound by natural law. This watch’s internal workings uses the very precise frequency signal of a quartz crystal to display time. The movement is powered by a battery and extremely accurate. What’s more it takes up minimal space, allowing for slimmer watch designs.

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Superior Precision

Our quartz movements are an electronic system that use the very precise frequency signal of a quartz crystal to display time. The movements are powered by a battery and are known to be extremely accurate.
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Water-Resistance

To ensure the integrity of our timepieces at depth, not just some but all watches are fully immersed in water and pressure is applied up to the point of the guaranteed water resistance. By submerging each watch in water we have chosen – yet again - to exceed normal testing standards.
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5-Year Warranty

In our quest to raise industry standards and push the boundaries of quality, all OMEGA watches are offered with a full 5-year warranty. This customer promise shows the confidence we have in the excellence of our timepieces, and provides extra trust and assurance when choosing your watch.
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Less servicing

Quartz batteries can last between 3 – 5 years, providing plenty of time before a replacement is needed. With a quartz movement, you can be assured that less servicing on your watch will be required.
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Shock-Resistance

During the homologation process, OMEGA watches are tested to the extreme. This phase includes shock examinations, to confirm reliability and to check that its precision is maintained after a severe impact. All OMEGA timepieces are designed to withstand shocks corresponding to a 1-metre drop on a hard wooden floor. For a standard 150g timepiece, this sudden and rapid acceleration is an equivalent force of up to 5,000 G on the watch head.

Seamaster 37.4 mm, steel on steel

Contact a boutique

Thank you for your interest

Key materials

Stainless Steel

Sapphire Crystal

Stainless Steel

Sapphire Crystal

Stainless Steel

Sapphire Crystal

The advantages
of this watch

Superior Precision

Water-Resistance

5-Year Warranty

Less servicing

Shock-Resistance

Superior Precision

Water-Resistance

5-Year Warranty

Less servicing

Shock-Resistance

Seamaster 37.4 mm, steel on steel

Contact a boutique

Thank you for your interest

Key materials

Stainless Steel

Sapphire Crystal

Stainless Steel

Sapphire Crystal

Stainless Steel

Sapphire Crystal

The advantages of this watch

Superior Precision

Water-Resistance

5-Year Warranty

Less servicing

Shock-Resistance

The advantages
of this watch