Brand: SEIKO BUSINESS DIASHOCK
SBA36 (11/02/24 2130)
Case no: 71xxxxx / 6206-8120
Function: Hour, min & sec hands with day & date
Caliber: 6206B
Vibrations per hour: 18,000
Production year: Jan 1967's
Driving system: Automatic winding
Dial: Nice graylish black color pattern dial original
Dial no: JAPAN 6206-8121T AD
Crystal: Acrylic original (Some Fine Hair Scratches)
Case: Stainless Steel (Fine Scratches & very small dent)
Case back: Stainless Steel (Fine Scratches)
Dimensions of case: 34 x 40.5 mm (Excluding Crown)
Case lug width: 20mm
Band: Nice hand made leather strap
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: Yes, DO NOT QUICK SET THE DAY & 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 or turn it by 24 hour's to set day (Set the time to 5.30 or 6.30 than quick set will be better)
Remarks: This watch are used in Japan