


Seamaster Diver 300M Black 42 mm in Steel
The Evolution of a Legend
Since 1993, the Seamaster Professional Diver 300M has enjoyed a legendary following. Today’s modern collection has embraced that famous ocean heritage and updated it with OMEGA’s best innovation and design.
This 42 mm model is crafted from stainless steel and includes a black ceramic bezel with a white enamel diving scale. The dial is also polished black ceramic and features laser-engraved waves and a date window at 6 o’clock.

Key Materials
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.
Ceramic
OMEGA has unrivalled expertise in the use of ceramics, dating back more than 10 years. Taking its origin from the Greek word "keramos", ceramic is an inorganic, non-metallic substance obtained by firing at high temperatures. It allows the creation of completely dense watch parts with exceptional mechanical properties.
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.
Movement
Automatic
Self-winding movement, resistant to magnetic fields reaching 15,000 gauss. Free sprung-balance with silicon balance spring, automatic winding in both directions. Rhodium plated finish with Geneva waves in arabesque.
DESCRIPTION
Since 1993, the Seamaster Professional Diver 300M has enjoyed a legendary following. Today’s modern collection has embraced that famous ocean heritage and updated it with OMEGA’s best innovation and design.
This 42 mm model is crafted from stainless steel and includes a black bezel with a white enamel diving scale. The dial is also polished features laser-engraved waves and a date window at 6 o’clock.
The skeleton hands and raised indexes are rhodium-plated and are filled with white Super-LumiNova, while the helium escape valve has been given a conical design.
FEATURES
Antimagnetic, Date, Unidirectional rotating bezel.
TECHNICAL DATA
- Between lugs
- 20 mm
- Lug‑to‑lug
- 49,90 mm
- Thickness
- 13,56 mm
- Case diameter
- 42 mm
- Case
- Steel
- Dial colour
- Black
- Crystal
- Scratch-resistant sapphire
- Water resistance
- 5 bar
- Total product weight
- 194 g
- Calibre
- Automatic
- Movement Type
- Self winding
BRACELET
- Material
- Steel
- Type of Clasp
- Foldover clasp with comfort setting and diver extension
Pairs well with
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