Considering this GMT

[dan993]

Originally Posted by antrolexsub

Red backs are for a 1675.

Inserts for this are plentiful and reasonably inexpensive if you wish to replace. Yes it’s been polished but so have most examples, there’s too much fuss around ‘unpolished’ examples imo. If it’s done well it’s not an issue, I’d be more concerned about the bracelet stretch on this watch, which isn’t a big issue, it can be fixed for a few hundred, just factor the cost into your offer.

Yet again great advice