Welcome Goblin!
Good spot on the hands and you are correct to query them. These are Monaco hands which have wider lume-it's not wholly uncommon to see them on 11630 or 1163s and probably changed at service or repair...although not technically original as you point out. Generally not seen as too much of an issue though...possibly even worth something to a Monaco owner who needs new hands.
I don't see an issue with any '7' though-you are referring to the bezel?
That said, my main concern would be the condition of this one-the dial has seen better days, rear of case is filthy.....but the front of the case in particular, has been refinished and not very well I'm afraid-that is not something that can be easily fixed necessarily.
All should be reflected in the price of course so if you're comfortable with that and satisfied with the condition, that's call only you can make!
Hope that helps.
Best,
Steve