Wearing reference 210.30.44.51.03.001, this super clone is the Diver 300M chronograph in blue on a matching blue rubber strap. The 44mm case houses a column-wheel chronograph movement with subdials at 6 and 9 o’clock, while the blue ceramic bezel with liquid metal diving scale frames the blue wave-pattern dial. Omega has made the Diver 300M chronograph in several color combinations, and this all-steel blue reference is among the most versatile.

Key Specifications

• Case diameter: 44mm
• Case material: stainless steel
• Bezel: blue ceramic unidirectional with liquid metal scale
• Dial: blue ceramic with wave pattern and chronograph registers
• Crystal: sapphire with anti-reflective coating
• Strap: blue structured rubber with folding clasp
• Water resistance: 300 meters
• Functions: chronograph, date, helium escape valve

The liquid metal bezel markings are chemically bonded to the ceramic rather than painted, which means they cannot wear off through normal use. This process is specific to the current Seamaster generation and contributes to the clean bezel appearance.

Design & Finishing

Blue Seamaster chronographs carry a dual identity. The wave dial and dive bezel establish sport credentials, while the polished case edges and ceramic material quality bring a refinement that pure tool watches typically skip. The chronograph pushers sit flush with the case contour at 2 and 4 o’clock, maintaining the silhouette without protruding elements. Compared to the black ceramic 44mm Diver 300M chronograph, this blue version reads lighter and more casual in most lighting conditions. Both versions share the same architecture within the Seamaster range, differing only in ceramic dial and bezel color. If you want this same blue chronograph on the steel bracelet instead, that is the bracelet version of 210.30.44.51.03.001.

On the Wrist

The blue rubber trades the steel bracelet’s substance for comfort and for a dial-to-strap colour match that the bracelet version cannot offer. On the wrist, the 44mm case with its gently curved lugs follows the wrist contour rather than sitting flat on top. The chronograph complication adds thickness compared to the three-hand Diver 300M, but the additional functionality justifies the added millimeters. Blue remains the signature Seamaster color, and in chronograph form it gains the subdial detail that makes the dial more visually active. This blue chronograph on rubber represents the blue Diver 300M chronograph in its blue-on-blue rubber configuration.