1968 Citizen Crystal Seven ACSS2912a-Y

Serviced (October 2021) 1968 Citizen Crystal Seven 23 jewels automatic watch
Model number ACSS2912a-Y

Case size 36mm without the crown x 44mm x 10mm
Lug width 18mm
Citizen stainless steel bracelet. Max circumference 17.5cm. If more width required, clasp extension can be added for extra 16mm. 

New mineral crystal 

There is a noticeable dent on the side at 4 o'clock and few small not too noticeable ones, but other than that, case is not too bad. Check the pics.

Dial has some signs of ageing and some peeling around the edge. More or less visible depending on light.

Movement runs well and accuracy is good. Within 20 seconds a day.
Pull crown one step to change date.
There is no quick set for day so you have to advance hands and go back and forth between 24:00 and 20:00.