Hi all I’m aware that UG’s and Polerouter’s usually have a case back reference which describes case material, dial etc. This example below doesn’t. Is this normal? It seems to be a later example. https://carousell.app.link/fbNrwLe4zcb Thanks Weihao
You need higher res photos - the references may be there but faint. They may also have worn off completely.
It is likely a 10375-1, with a 218-9 inside. If the reference and serial are not on the caseback, they have been worn/polished off at some point.