Brand: SEIKOMATIC DIASHOCK
SM138 (04/03/19 1330)
Gender: Men's
Case no: 65xxxxx / 6206-8130
Function: Hour, min & sec hands with day & date
Caliber: 6206
Vibrations per hour: 18,000
Production year: May 1966's
Driving system: Automatic winding
Dial: Nice silver color dial original (Fine stain & pitting)
Dial no: JAPAN 6206-8130T AD
Crystal: Acrylic (Fine scratches & deep scratches at the side)
Case: Stainless steel (Fine scratches)
Dimensions of case: 37 x 44 mm (Excluding crown)
Case lug width: 19mm
Condition: Used, working, very fine in as found condition as you can see at the Picture
Service: -
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