Omega is promoting the use of four materials: 18ct Sedana gold, titanium, ceramic and tantalum, in a limited edition blue and gray dial replica Omega Seamaster Diver 300M that goes on sale at its own boutiques and online stores this fall.

For those unfamiliar with tantalum, it is a rare, hard, chemically-stable blue-gray metal that is commonly used as an alternative to platinum.

Omega first used tantalum in 1993 and, for the new Seamaster, has made the base of the bezel and middle links in its bracelet from the material.
The 44mm copy watch is made mostly from lightweight titanium, but the pale red Sedana gold is used for the bezel and as a highlight for the crowns, pushers and bracelet.

The inside of the bracelet is hallmarked for its gold and stamped with “Tantalum”.
It has a laser-engraved blue and gray dial made from ceramic with date, central hours, minutes and chronograph seconds hands, plus small seconds and 12-hour and 60-minute recorder subdials.

The watch is powered by best fake Omega automatic chronograph Calibre 9900 movement.

Each uniquely numbered watch will be sold at Omega boutiques this fall for CHF18,100 plus tax.