This comes up quite often and the answer is often the same. Basically for happy life = happy wife. Put any watch WIS prejudice to the side andbuy her what she likes.
Personally I think that Longine are the masters of pretty ladies watches, Ebel 2nd hand might be a choice under a £1k I reckon.
Most woman I know have absolutely no interest in movements so that free’s you up to go Quartz.
My wife wanted something quite sporty but found the ladies Aqua Terra a bit dull. After doing the Omega is considered the better watch speech we got the Tag. In the process I risked knocking her opinion on what is a very nice and glitzy Tag Aqua Racer diamond set watch 30mm
I reckon 2nd hand they’d be a grand.
The wife still doesn’t believe the Aqua Racer can go in water btw . Lol
Overall I’d get your wife to accompany you around 3-4 good jewellers . They should get the champagne glass out if there any good, so you can have a fun time choosing , by the time you’ve done that you’ll figure out if she prefers traditional cocktail style watch , sporty , glamorous Longine style , or big Michael Korrs style.