Took a punt on this rather grubby 6119-8430:-
I removed the bracelet, cleaned up the case and polished the crystal, followed by 30secs in the ultrasonic bath.
With all the muck off of the case I was pleasantly surprised to see that there was virtually no scratches on the watch and the original finish was almost totally intact.
I repaired the bracelet, stuck it in the ultrasonic cleaner, grained the worst scratches off with an abrasive pad, then back in the ultrasonic bath.
Seems to be a fairly uncommon model, can't find much about it on the internet, other than the earlier ones, up to 1971, appear to have been fitted with a different bracelet (which I think looks nicer ) I do rather like the big case, sort of 'cushion' on steroids . Cleaning the crap out from under the crown, with some dental floss, got the crown push date setting working again . Can anyone confirm that the day setting on the 6119 movement is manual only?