Case no: 003xxxxx / 4-720431 YD
Function: Hour, min & sec hands with date & english or kanji day wheel
Caliber: 7210
Vibrations per hour: 28,800
Production year: Mar 1970's
Driving system: Automatic winding with manual winding & hacking (Stop the sec hands)
Jewels: 26 Jewels
Dial: Nice gray color pattern dial original
Dial no: JAPAN 6-720901-Y
Crystal: Glass
Bezel: -
Crown: Signed C original
Case: Stainless steel (Fine scratches & small dent)
Case back: Stainless steel (Fine scratches)
Dimensions of case: 38 x 40.5 mm (Excluding crown)
Case lug width: 18mm
Band: Hand made leather strap
Condition: Used, working, very fine in as found condition as you can see at the Picture
Service: -
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 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 or turn it by 24 hour's to set day (Set the time to 5.30 or 6.30 than quick set the day or date will be better)
Remarks: This watch are used in Japan