The Omega Seamaster Diver 300M ref. 210.30.42.20.01.001 is a modern evolution of one of the most recognizable dive watches ever created. First introduced in 1993, the Seamaster Diver 300M was designed as a true professional tool watch and a formidable competitor to the Rolex Submariner. More than 25 years later, its distinctive design, technical innovation, and strong identity continue to set it apart in the high-end dive watch category.

This reference features a 42 mm stainless-steel case paired with a matching steel bracelet, offering a robust yet refined presence on the wrist. The black ceramic bezel frames a black ceramic dial decorated with Omega’s signature laser-engraved wave pattern, delivering depth and visual character. Luminous hands and indexes ensure excellent legibility, while the exhibition sapphire caseback reveals the advanced movement inside.

Powering the watch is the Omega Master Co-Axial Calibre 8800, a METAS-certified automatic movement known for its precision, magnetic resistance, and long-term reliability. With features such as a helium escape valve, unidirectional rotating bezel, and 300 meters of water resistance, the Seamaster Diver 300M is engineered for serious underwater performance while remaining versatile enough for everyday wear.

Key Features:

Brand: Omega
Model: Seamaster Diver 300M
Reference Number: 210.30.42.20.01.001

Movement: Automatic, Omega Master Co-Axial Calibre 8800
Functions: Hours, minutes, seconds, date, helium escape valve
Case Material: Stainless steel
Case Diameter: 42 mm
Dial: Black ceramic with wave pattern and luminous indexes
Bezel: Black ceramic, unidirectional rotating
Crystal: Anti-reflective sapphire crystal
Caseback: Exhibition sapphire
Water Resistance: 300 m / 1,000 ft
Bracelet: Stainless-steel bracelet
Clasp: Folding clasp
Condition: Pre-owned, excellent
Includes: Box and papers

Combining iconic design with cutting-edge technology, the Omega Seamaster Diver 300M remains a benchmark in modern dive watches — a perfect balance of performance, heritage, and everyday luxury.