The fourth generation of the Omega Seamaster Diver 300M was introduced in 2018, marking the return of the collection’s characteristic wave-patterned dial and the introduction of a new generation of Co-Axial Master Chronometer movements.

Reference 210.22.42.20.01.001 combines a 42 mm stainless-steel case with details in 18K yellow gold. The unidirectional bezel features a black ceramic insert with a Ceragold™ diving scale, while the polished black ceramic dial is decorated with laser-engraved waves and a date aperture at 6 o’clock.

The skeletonised hands and raised hour markers are crafted in 18K yellow gold and filled with white Super-LumiNova. The model also features the characteristic helium escape valve at 10 o’clock and is water-resistant to 300 metres.

The watch is powered by Omega’s automatic Co-Axial Master Chronometer calibre 8800, offering approximately 55 hours of power reserve and resistance to magnetic fields of up to 15,000 gauss. The movement is visible through the sapphire crystal case back.

Presented on a black rubber strap, the reference combines the classic design language of the Seamaster Diver 300M with modern ceramic materials and contrasting yellow-gold details.