Why not buy her an Aquanaut Luce with diamonds with 324sc movement. Thats more fitted for her. Rose gold version. My suggestion. Best wishes. You have a great Nautilus in the platinum 40th anniversary. Geross.
The blue of this dial is simply amazing and heft of this watch has a great feel. The diamonds are discrete and do not draw attention, which can be good or bad depending on your personal preference. LOL ! Enjoy this superb anniversary piece ! Cheers Gordon...