The Speedmaster's history goes back to 1957 when it was introduced as a sports and racing chronograph, complementing Omega's position as the official timekeeper for the Olympic Games. The "Speedmaster" name was chosen for its tachymeter scale bezel and following the Omega convention used for other models like the Seamaster - initially the Speedmaster was part of the Seamaster line - and the Railmaster.
This first Speedmaster model - reference CK 2915 also known as the "Broad Arrow"- was designed by the Swiss Claude Baillod and was already featuring some of the hallmarks of the model: the triple-register chronograph layout, the high-contrast index markers, and the domed Plexiglas crystal. The dial was an example of perfect balance and proportions. The model had straight lugs, broad arrow hands and the bezel was in steel with engraved black print. The case diameter was 39 mm.
The Split-Second model is so-called because of the two chrono hands that it features, allowing the wearer to records split times. This particular piece is in good condition as shown in photos. Enquire for more details.
Model Number: 3540.50
Condition: (3) Good
Condition Detail: Some general wear.
Case Width: 42x42mm
Case Material: Stainless steel
Lug Type: Normal
Lug Width: 20mm
Strap Material: Stainless steel
Complications: Hours; Minutes; Small seconds; Chronograph; Split-Seconds; Tachymeter