Seamaster Diver 300M Co-Axial Master Chronometer Chronograph 44MM

The latest addition to the Seamaster Diver 300M collection, introduced in 2020, is a chronograph in gold, titanium and tantalum. Sedna™ gold – Omega’s proprietary alloy of gold, copper and palladium – is matched with grade 2 titanium that is heat-treated for greater strength. The third component, blue-grey tantalum, is rarer than gold and harder than steel, as well as exceptionally resistant to corrosion. Tantalum is also an inert metal, hence a valuable alternative to platinum, though rarely used in watchmaking as its density, malleability and the fact it is a good conductor of heat and electricity make it particularly difficult to work with. This Seamaster Diver has a 300-metre depth rating and is powered by Omega’s 9900 Master Chronometer chronograph calibre. On the caseband, an engraved plate in Sedna™ gold identifies each watch in this numbered edition.