Brand: SEIKO SKYLINER CALENDAR DIASHOCK
104 (30/08/20 2130)
Gender: Men's
Case no: 37xxxxx / J15019 SLNC
Function: Hour, min & sec hands with date
Caliber: 956
Vibrations per hour: 18,000
Production year: July 1963's
Driving system: Hand winding
Dial: Nice silver color dial original (Some very fine scratches)
Dial no: JAPAN SLNCJ155-578-E-AD
Crystal: Acrylic (Fine hair scratches)
Case: Stainless steel (Fine scratches)
Case back: Stainless steel (Fine scratches)
Dimensions of case: 36 x 43 mm (Excluding crown)
Case lug width: 19mm
Condition: Used, working, very fine in as found condition as you can see at the Picture
Service: Yes
Power reserve: Fully wind or charged will last up to 35 to 40 hour's depend on movement
Accuracy: Tested flat & it's within 60 sec. Please see the last pic
Quick set: No, Turn the crown by 24 hour's to set date
Remarks: This watch are used in Japan