Brand: SEIKOMATIC DIASHOCK
SM136 (31/12/18 1330)
Gender: Men's
Case no: 64xxxxx / 6218-8950
Function: Hour, min & sec hands with day & date
Caliber: 6218C
Vibrations per hour: 18,000
Production year: Apr 1966's
Driving system: Automatic winding with hacking (Stop the sec hands)
Dial: Nice matte silver color dial original (Some fine stain)
Dial no: JAPAN 6218-8950T AD
Crystal: Acrylic (Fine scratches)
Case: Stainless steel (Fine scratches & small dent at the side)
Dimensions of case: 37 x 42 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
Accuracy: Tested flat & it's within 60 sec. Please see the last pic
Quick set: Yes, DO NOT QUICK SET THE DAY OR DATE WITHIN 10 TO 4 O'CLOCK
Pull out the crown to the first click to set date & pull out the crown to secound click to set time & turn it by 24 hour's to set day
Remarks: This watch are used in Japan