This replica Seamaster 210204 44mm carries the 210.20.44.51.03.001 reference, placing it firmly in the Seamaster Diver 300M chronograph family. At 44mm, the case runs larger than the standard time-only Diver 300M, but the integrated lugs and curved caseback keep the overall wrist presence manageable. The two-tone construction pairs steel with rose gold accents on the bezel, crown, pushers, and bracelet center links. A blue ceramic dial with laser-engraved wave pattern sits under a domed sapphire crystal with anti-reflective coating on the inner surface.

Build Details

• Case diameter: 44mm
• Case material: steel with rose gold two-tone
• Bezel: blue ceramic with rose gold diving scale
• Dial: blue ceramic with wave motif
• Crystal: domed sapphire with AR coating
• Movement: automatic chronograph
• Water resistance rating: 300 meters
• Functions: chronograph, date, helium escape valve

The two-tone execution adds visual warmth that the full-steel Diver 300M chronographs lack. Rose gold pushers flank the screw-down crown at 3 o’clock, and the matching bezel numerals create a cohesive palette from every angle.

What Collectors Notice

Omega positioned the Diver 300M chronograph as the heavier-duty alternative to the standard three-hand model. The chronograph subdials at 6 and 9 o’clock are recessed into the ceramic dial, giving depth without cluttering the face. Compared to the 41mm Seamaster 233304, this reference trades compactness for complication and wrist impact. For those browsing the full Seamaster lineup, the 210.20 series represents the dressier end of the chronograph range thanks to that two-tone treatment.

This vs Other Versions

Within the Diver 300M chronograph catalog, the 210.20 references stand apart because of mixed-metal construction. Full-steel versions in black or blue run more understated, while this rose gold combination leans toward a weekend-dressy register. The 44mm case thickness sits around 16mm including crystal, so it favors medium-to-large wrists. If you want the Omega chronograph toolkit wrapped in warmer tones, this replica Seamaster 210204 44mm delivers that combination without compromise.