The CHRONOMASTER Sport Skeleton in a 41mm stainless steel case that combines classic pump-style pushers with a modern green ceramic bezel. Its smoked sapphire dial with counters in three shades of gray unveils the skeletonized El Primero 3600 SK caliber, an automatic high-frequency column-wheel chronograph movement with 1/10th of a second chronograph function. Supplied with a steel bracelet featuring a comfort-adjust folding clasp, plus an extra green rubber strap.