It looks fine to me. Have a look here https://www.heuerpriceguide.com/autavia-70-80s-price-guide

It's probably had the case refurbished by Abel Court or another specialist.

Peter. Denmark

: I’ve been offered a 11630 GMT which appears to be in excellent
: condition. The serial number starts 262xxx which I’m lead to
: believe is from the first batch produced in 1972. The condition
: appears unusually good for the ang and I’m struggling to tell
: if everything looks original, or whether it has replacement
: parts. The seller has owned it for 13 years and assures me
: nothing has been replaced in that time though he has no history
: before that. It’s not been serviced for 13 years either,
: though maintains +12spd. The bracelet seems to be the original
: type, though was bought more recently.

: It’s for sale for £7k, and I’d appreciate your thoughts on the
: price, and originality.

: Thank you.