Featured in the "Museum of Japanese made Watches" published by World Mook, this is another example of a rare and excellent condition 8100 23J Citizen vintage automatic chronograph.
Some light scratches on case but otherwise in excellent condition.
All functions work as they should: flyback, chrono resetting, day-date quickchange.
Check out the pic taken next to its entry in the "Museum of Japanese made Watches" published by World Mook. This watch is accurate right down to the orange tip on the sweep second hand!
A real beauty!