cazalea[Seiko Moderator]
17048
The tests were made when ANY movement could apply for COSC
Jul 06, 2020,14:56 PM
Later the rules were changed to SWISS only, so no Japanese, German, US, UK could qualify for COSC.
I just ran across the certificate today while sorting paperwork for my watches.
Here is the watch:
I bought it from Ken KIH five years ago, and he had just had it serviced by the top GS adjustment man, AKIRA OHIRA.
I timed it at home 2-3 years ago, and it was still running within these specs. I can't find the printout right now.
Mike