dvice on buying pleaseA

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I haven't been in here for a while but had a call from an old GF last night wanting advice on a new watch. She seems to have at first set her heart on a Breitling Colt Quartz which I did my best to dissuade her from buying. So I started searching, maximum budget £1,700 including discount or secondhand, and then though that the great pool of knowledge here would shortcut my feeble brain power. She's an active girl, loves horses and cars, so we don't want anything dainty but tough yet stylish. Being an IWC person I looked at their range but couldn't find anything. Sinn, Damasko etc? Over to you for some ideas please!