Very close to my 1022 in type, just cleaned by my watchmaker.
I was also lucky to get one with the original bracelet and crown, and cleaned but nor restored dial. Both are day-date. The 1022 is a little later, adding a few extra jewels.

1020- 17 jewels
1022- 23 jewels (after c. 1975)

The family (1972-1984) consists of numbers 1010-1022; plus manual wind 1030 and 1035, both 17 jewel. 1011 and 1021 were issued as chronometer (COSC testing).

I would like to find a good 1021 or 1011.