Omega Speedmaster Chronoscope Co-Axial Master Chronometer Chronograph 43 mm watch in a unique 9K bronze gold alloy case with a brown leather strap.
The dial features a 1940s-inspired "snail" design incorporating three timing scales: a tachymeter, a pulsometer, and a telemeter.
The watch is powered by the manual-winding OMEGA Co-Axial Master Chronometer Calibre 9908.
The bronze gold alloy was specifically developed by Omega to be worn in direct contact with the skin and contains 37.5% gold, palladium, and silver.
It has two counters on the dial: a small-seconds counter at 9H and a 60-minute/12-hour recorder at 3H.