How to shorten 1680 bracelet

[Cebuano]

Guys I don't post much but read a lot. I need advice. I have a 1680 that my wife wants to wear, the only thing is that she has really small wrists. I have taken off all the removable links and it's in the smallest hole but it's still too big for her.

Without actually cutting the bracelet the only thing I can think of doing is to buy a shorter generic clasp from Ebay, etc... I am guessing any 20mm generic oyster type clasp will work. They run around $30 and a real Rolex clasp runs around $200. I might just start with a generic one to see.

Any other ideas is welcome.

Thanks