Brand: KING SEIKO KS231 (20/10/19 2130)
Vibrations per hour: 18,000
Crystal: Acrylic (Some fine scratches)
Case back: Stainless steel (Fine scratches)
Case lug width: 18mm
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 or pull out the crown to secound to set time
(Set the time to 5.30 or 6.30 than quick set will be better)