Well...as kaccay pointed out this is very practical fetish. You can practise it everywhere; airports, busses shopping malls. What is my thing; when girl wears big, expensive, loose and steel (or rubber with diver's!) mens watch - I am in pain to see it

. But I am in lucky position: my wife knows about this

I told her a few years ago taht I love when she wears her watches in bed, and borrow mine sometimes.
Then I took next step; I started to ask her to wear men's (=mine) watches daily. She was against it but my gifts (You never knew what they were...) started to get bigger lady sized, then midsized ones...and finally I bought first mens watch to her: it was Tag-Heuers Aquaracer "Submariner-look-alike" First she did not wore it at all, later avery now and then and then it came for years her daily piece. I was in heaven.
And I'm still are, bacause I dont know what happened but nowdays she wears only mens watches and pieces from my collection: Breitlings, Tag-Heuers and Omegas. I have a small collection that I rotate: sell them, buy a new ones etc. and every now and then my wife puts my purchase to her wrist and heat is up again when seeing her with a new watch. And thats my thing: to see her putting my big watch on her small wrist on morning and imagine to have a sex with her at the evening while she is still wearing it...
Woman will love expensive stuff and jewellery: so I have a feeling that you cant go very wrong when saying "Honey, I have to confess that I love to see women wearing xxx typed watches. Do you mind if I buy you one, and could you wear it, and only it, every now and then? " Risk that she screams "Hell no!!! Dont buy me any jewellery!!!! is...well...not very possible to happen.

Telling to my wife about this fetish was best thing I've done, and thats my advice to everyone; just tell it and start to enjoy about it; some like coffee, some like their feet massaged in bed - some like watches. So what?
She even knows that I'm spotting ladies with watches in TV or in wild: "LOOK! That girl is wearing diver watch!!!" "Yes...yes...eyes back to road, you are driving, stupid man!"