I would like to ask the experts and other Seiko collectors. I would like to confirm if both Seiko models use the same crystal size? Also, does anyone know the original crystal part code? :confused: I'll appreciate any information regarding this question :D

For sale is my July 1975 Seiko 6105-8110 Fully serviced with replacement of select movement parts with NOS parts and new seals. Keeps excellent time with a strong power reserve Regulated Pressure tested to 6 bar (teflon tape installed on stem to seal) Case is in great condition, see pictures...

Hi folks. I would like to ask for your know-how on a matter. I would like to buy a 6105-8110, and I am not a fan of the "old faded, no Lumen" look, So i would want a new dial and hands for it. I would naturally save the original parts, but for me, the "engine" is the important thing. So when...