Brand: KING SEIKO HI-BEAT KS241 (16/02/20 2130)
Vibrations per hour: 28,800
Crystal: Glass (One fine hair scratches)
Case back: Stainless steel & it's a one piece case (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 & 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)