Citizen Men's Record Label Tsuno Chrono Watch AN3660-81AProduct Highlights Introducing a reissue of the iconic "Chronograph Challenge Timer," Citizen's first full fledged chronograph watch that debuted in 1973. Known affectionately as the "Horned Chrono" for its bush buttons resembling horns at the 12 o'clock side of the case. This model stands out with a unique balance that defies convention, combining a soft case shape with a sharp bezel for a harmonious and exquisite design. With a case size of 38. 0mm,