Seiko 6139-6010, "Proof / proof", February 1970. Complete & unrestored
This is a complete and original slim-case “proof” 6139-6010. Untouched and original, complete with a full-length bracelet. This has sat in my projects drawers for many years. Hard to find these now in this sort of original condition.
“Proof / proof” watch, A-type movement, two-piece sweep
17j 6139A movement is in good physical condition, but unserviced
Bracelet is full-length
Original 330W18GN00 crystal is quite good; a few marks
Dial surface is perfect
Lume on dial is slightly patina’d.
Hand lume has minor but visible patina
Movement entirely functional but unserviced - this is not a “strap it on and go” watch.
Seals are all original and must be considered non-functional
Bracelet and case come with their original owner’s grime
Service for this watch can be arranged if the buyer wants that.