This replica Seamaster 210204 blue 3002 carries the 210.20.42.20.03.002 reference, a two-tone variant that pairs stainless steel with sedna gold accents and a blue ceramic dial. The “210.20” prefix identifies the two-tone construction, while the “03.002” ending specifies the blue dial configuration within that family. Two-tone Seamasters have always occupied a space between the full-steel sport models and the solid-gold dressy versions, and this reference does the same with a color combination that reads more refined than the all-steel alternatives.

Build Details

• Case diameter: 42mm
• Case material: stainless steel with sedna gold bezel ring and crown
• Bezel: ceramic with sedna gold liquid metal diving scale
• Crystal: domed sapphire with anti-reflective treatment
• Dial: blue ceramic with wave pattern, sedna gold hands and indices
• Bracelet: steel with sedna gold center links
• Functions: hours, minutes, seconds, date at 6 o’clock

The sedna gold elements on the hands, indices, bezel ring, and bracelet center links create a warm contrast against the blue ceramic dial. This alloy contains palladium, which prevents the gold from shifting toward a pinkish tone over time.

What Collectors Notice

Two-tone watches split opinion. Some see them as the best of both worlds. Others see them as neither fully dressy nor fully sporty. On the Seamaster Diver 300M, the two-tone treatment works because the gold elements follow functional lines rather than being applied purely for decoration. The bezel numerals are gold. The hands are gold. The center bracelet links are gold. Every gold surface serves a practical purpose as a marker, pointer, or structural component. That keeps the watch from looking over-decorated. See how this compares to the 210.20.42.20.01.001 two-tone black in the Seamaster lineup.

This vs Other Versions

Within the two-tone Diver 300M family, the blue-and-gold combination is the most nautical in feel. Blue suggests water, gold suggests brass and maritime hardware. The black-dial two-tone reads more conservative, while this blue version leans into the dive-watch heritage. The wave pattern on the ceramic dial enhances that connection. For buyers who want a Seamaster that communicates both sport capability and material quality without going fully precious metal, this sits at the right intersection. This replica Seamaster 210204 blue 3002 merges the two-tone aesthetic with the Diver 300M platform in its most ocean-inspired color.