In 1964, with the eyes of the world on the Tokyo Olympic Games, Seiko introduced its first chronograph, heralding its expertise in timekeeping precision. Today, this landmark watch is honored by an exceptional 55th Anniversary Limited Edition, echoing the strong dial, sharp bezel numbering and angled box crystal of the prized original. Offering chronograph measurement of up to 12 hours of elapsed time in 1/5-second increments and a 34-jewel automatic movement, this distinctive timepiece is available only in a controlled production run of 1,000, each with the individual serial number engraved on the caseback.