This is an unrestored Seiko 7A28-7060 quartz chronograph. This movement family is, in my opinion, the greatest quartz movement ever made. It certainly was the first analog quartz chronograph movement created; Seiko invented them. These were expensive when new.

• 15j 7A38a movement is working but is unserviced, and needs servicing. Main sweep hangs up, other registers may as well.

• Case is entirely original, including seals and crystal. Watch is not water resistant at all. Crystal has some scratches / marks.

• Overall, case & bracelet are in decent condition for the age, including the plated sections

• Box is an unusual grey clamshell, not a model I have seen before actually.