Omega Seamaster Diver 300M Co‑Axial Master Chronometer 42 mm – Black Ceramic Dial – Stainless Steel or Rubber Strap

The Omega Seamaster Diver 300M Co‑Axial Master Chronometer 42 mm is one of Omega’s most iconic modern dive watches, combining ceramic components, professional diving capability, and the brand’s advanced Master Chronometer movement. This black‑dial variant is the most classic and widely recognized configuration in the Diver 300M lineup.

The watch features a polished black ceramic dial with a laser‑engraved wave pattern, skeletonized hands, applied hour markers, and a red “Seamaster” signature. A date window sits cleanly at 6 o’clock. The black ceramic bezel includes a white enamel diving scale for long‑lasting clarity and durability.

The stainless steel case incorporates Omega’s signature conical Helium Escape Valve at 10 o’clock and a screw‑down crown at 3 o’clock. Inside, the Co‑Axial Master Chronometer Calibre 8800 delivers exceptional accuracy, magnetic resistance, and reliability.

Two configurations are shown:

1. Stainless Steel Bracelet Version

Ref: 210.30.42.20.01.001 Mounted on the iconic multi‑link stainless steel Seamaster bracelet with a foldover extendable clasp. The watch in the image is wrapped in protective factory film.

2. Black Rubber Strap Version

Ref: 210.32.42.20.01.001 Mounted on an integrated black rubber strap with a stainless steel pin buckle, offering a sporty and comfortable alternative to the steel bracelet.

KEY FEATURES

• Stainless steel case
• Polished black ceramic dial with laser‑engraved wave pattern
• Skeleton hands with red “Seamaster” text
• Date window at 6 o’clock
• Black ceramic bezel with white enamel diving scale
• Conical Helium Escape Valve at 10 o’clock
• Screw‑down crown
• Co‑Axial Master Chronometer Calibre 8800
• Sapphire crystal
• Professional 300‑meter water resistance
• Available on stainless steel bracelet or integrated black rubber strap

FULL SPECIFICATIONS

Brand: Omega Model: Seamaster Diver 300M Co‑Axial Master Chronometer References:

• 210.30.42.20.01.001 (Stainless Steel Bracelet)
• 210.32.42.20.01.001 (Black Rubber Strap)

Case Material: Stainless Steel

Case Size: 42mm

Bezel: Black Ceramic with White Enamel Diving Scale

Dial Color: Polished Black Ceramic (Wave Pattern)

Bracelet/Strap: Stainless Steel or Black Rubber

Movement: Omega Co‑Axial Master Chronometer Calibre 8800 (Automatic) Power Reserve: Approx. 55 hours

Crystal: Sapphire

Water Resistance: 300 meters

Functions

• Hours
• Minutes
• Seconds
• Date

Gender: Unisex

Condition: Brand New

WHAT’S INCLUDED

• Omega Seamaster Diver 300M Watch
• Omega Presentation Box
• Omega Warranty Card
• Instruction Manual
• Protective Film (as seen in photo)

WARRANTY & AUTHENTICITY NOTES

• High‑Quality Master Copy Omega product
• Serial number available upon request
• Comes with full packaging
• Not eligible for Omega service centers worldwide