The files are available on the myretrowatches website (out of the UK). Look in the Resources tab for Japanese Mfr DocsHi Everyone, another new member after the same info. Specifically looking for the glass size of a Citizen Navihawk GN-4-S but the manuals would be nice too. If anyone could help with both/either it would be very much appreciated.
Thanks
Rolf
Hope it helps!