Seamaster Diver 300 - designed for divers and professionals Water resistant to 300 bar (300 metres) Driven by the OMEGA Master Chronometer Calibre 9900 Presented in a 44mm stainless steel and 18K yellow gold case paired with a blue rubber strap Polished blue ceramic bezel with a Ceragolddiving scale DIVE INTO EXTRAORDINARY TIMEKEEPING Paying tribute to Omega's ocean heritage, the Seamaster collection features Master Chronometer certification, advanced designs and water resistance to 30 bar (300 metres). Designed for use underwater, the Professional Diver 300 collection includes co-axial escapement for long-lasting precision, a silicon balance spring for superior anti-magnetism, and a newly designed, conical helium escape valve. AN UPDATED ICON This 42mm model is presented in a stainless steel and 18K yellow gold case, framed by a polished blue ceramic bezel with a Ceragolddiving scale, and presented on a blue rubber strap. A further nod to the collection's marine legacy, the polish