Omega Seamaster Diver 300m 210.32.42.20.04.001 42 mm White Dial

210.32.42.20.04.001 is the 42 mm steel Seamaster Diver 300M on a black rubber strap with a pin buckle. The dial is polished white ceramic with laser-engraved waves, the unidirectional bezel is ceramic, and the hands and indexes are blackened skeletons filled with white Super-LumiNova. A helium escape valve, screw-down crown and 300-metre rating mark it as a diver, 13.56 mm thick, with a wave-edged sapphire caseback. Omega Co-Axial Master Chronometer Calibre 8800, automatic, anti-magnetic and chronometer certified, sits inside. This reference is still made.

Six Saudi listings currently follow 210.32.42.20.04.001. Nearby Diver 300M codes include 210.32.42.20.01.001, which shares the 210.32.42.20 prefix, and older 212.30.41.20 numbers that blur in a search. White ceramic on rubber is the tell, but only the full reference confirms it. Compare those six against that code, not against a generic white Seamaster.