Brand: SEIKO SEA HORSE DIASHOCK SSH04 Gender: Men Case Number: 6602-8990 Function: Hour, Minute & Seconds with Date Caliber: 6602B Vibrations per hour: 18,000 Year of Production: 1967 Movement System: Manual Winding Jewels: 17 Jewels Dial: Silver Dial Dial: JAPAN 6602-8970T Crystal: Acrylic Crown: - Crown: Unsigned Case: Stainless Steel (Fine scratches) Case Dimensions: 35 x 43 mm (Crown excluded) Strap: New Leather Strap Condition: Used, Working, Very good condition as you can see in the picture Service: Yes Remarks: This watch is used in Japan and is very rare