My wife had little interest and used to just wear her dress watch, a 1990s Quartz De Ville that we bought new, together. She prefers small watches with a size that used to be the standard for ladies watches whereas nowadays, they've generally become too large for her.
Having got interested in vintage watches, a couple of years ago I built her this SM60. She doesn't care that it's a franken and loves it. About 25 mm diameter and with a terrific cal 684 inside - basically a 2/3 sized cal 56x but running at 21600 A/h. Quite a feat. The colour is right for her so, that helped a lot.
😁
Having set a precedent.... a daft little present being a Mickey watch - she likes wearing this as well so, another good choice.
You can tell we've been together a long time as I have a fair idea what she likes
🙄.
She's not interested in wearing any of mine as they are just far too large - I think even a sixties Constellation is 34 mm diameter and as for a 42 mm SM300 or Speedmaster.... Here's that SM60 with some boys watches:
If she liked your first present, there are some really nice vintage watches in ladies sizes and the prices are pretty good as well.
Cheers, Chris