This Seiko produce in April 1978, watch is in MINT condition, all functions including display light wotking perfect.
Watch have: Calendar, Stopwatch and Countdown functions.
Bracelet have full size, glass is mineral, all pushers working smooth. Please look macro images, you can see the smallest details on them.
Many are mistaken when they say that the black surfaces on this watch are made with the PVD method. This is not true, PVD was developed and used much later. The black surfaces on this watch are painted using the powder coating method, which is quite durable and of high quality.
A very nice retro digital watch, which still looks attractive today.