210.90.42.20.10.001Ref

Introduced in 2024, the Omega Seamaster Diver 300M ref. 210.90.42.20.10.001 combines a brushed 42 mm case of grade 2 titanium and 9K Bronze Gold with a domed sapphire crystal that has internal anti-reflective treatment, a 300-metre water resistance rating, and a wave-edged sapphire caseback. Its unidirectional bezel features a green oxalic anodised aluminium insert with vintage Super-LumiNova diving scale, while the sandblasted green aluminium dial has blackened hour markers with vintage Super-LumiNova, PVD 18K Bronze Gold hands, and light-brown and red transferred markings including the logo. The watch is powered by the METAS-certified Co-Axial Master Chronometer calibre 8806 (25,200 vph, 55-hour power reserve, anti-magnetic to 15,000 gauss) and comes on a brushed titanium mesh bracelet with folding clasp.