https://www.ebay.com/itm/26521288592...YAAOSw7iFg25Al
This dude is trying to sell a watch made in 1967 from a store that was closed in 1966 lol.
I guess its possible if it was made very early in 1967 but seems sketchy, wouldn't trust that insert at all. Especially with the link to those aftermarket inserts from IG.