This replica Seamaster 210904 1001 is built around the 210.90.42.20.01.001 reference, a titanium Seamaster Diver 300M that strips away the polished steel look in favor of a matte, brushed finish across every surface. The all-titanium construction covers the case, bracelet, and even the clasp hardware, resulting in a 42mm dive watch that feels closer to a 38mm piece on the wrist. Omega positioned this reference as the technical choice for buyers who want Diver 300M capabilities without the weight penalty of 316L or 904L steel.

Case & Movement Specs

• Case diameter: 42mm
• Case material: grade 2 titanium
• Bezel: ceramic unidirectional diving bezel
• Dial: black with luminous applied indices
• Bracelet: titanium with adjustable clasp
• Water resistance: 300 meters
• Functions: hours, minutes, seconds, date
• Helium escape valve at 10 o’clock

The titanium bracelet uses a brushed finish across all links, avoiding the polished center-link treatment found on steel Seamaster bracelets. This keeps the visual profile understated and consistent.

Caliber Breakdown

The automatic movement inside provides the same functional package as steel Diver 300M references: central hours, minutes, sweeping seconds, and a date complication at six o’clock. Power reserve supports standard daily rotation without needing a winder. The omega seamaster diver 300m in titanium uses identical gear train architecture to its steel siblings, so accuracy and reliability expectations remain the same. What changes is the case interaction with the movement. Titanium dampens vibrations differently than steel, though the practical effect on timekeeping is minimal. Compare this against the green-dial 210.90.42 version to see how dial color shifts the character of the same titanium platform. Both belong to the broader Seamaster family.

How It Compares

Steel Diver 300M references at 42mm weigh noticeably more on a bracelet, which some wearers prefer for the sense of substance. The titanium version trades that heft for all-day comfort, particularly relevant during travel or active wear. The ceramic bezel insert remains the same material across both case metals, so scratch resistance is identical. If daily comfort ranks higher than wrist presence in your priorities, the titanium build makes a strong case. This replica Seamaster 210904 1001 offers the full Diver 300M specification set in the lightest configuration available from the current lineup.