Omega Speedmaster Automatic Racing – Yellow Dial – Ref. 3510.12.00 Brand: Omega Model: Speedmaster Automatic Chronograph (Racing) Reference number: 3510.12.00 Movement: Omega Calibre 1143, automatic chronograph Country of manufacture: Switzerland (Swiss Made) Description Offered for auction is an Omega Speedmaster Automatic Racing, featuring a yellow dial with three chronograph sub-dials and a black tachymeter bezel. This model belongs to the Speedmaster family and draws inspiration from motorsport timing instruments. The watch is powered by the Omega Calibre 1143, an automatic chronograph movement based on the ETA 7750, known for its reliability, robustness, and ease of servicing. The movement is fully signed Omega, as visible in the photographs. Technical details Case material: Stainless steel Case diameter: approx. 39 mm (excluding crown) Bezel: Black tachymeter bezel Dial: Yellow, applied hour markers, three sub-dials Functions: Hours, minutes, small seconds, chronograph (seconds, minutes, hours) Crystal: Mineral crystal (Speedmaster line) Case back: Solid, with Speedmaster Hippocampus emblem Strap: Yellow leather strap, aftermarket / non-original Omega The watch is in great condition, there are only a few light scratches. There are not any deep dings on the case, or scratches on the cristal.