Got my gf a Baume & Mercier, you can occasionally find them at Costco for about $700 in stainless steel. Unfortunately, I paid much more but I wanted a special color combo.
They have a quarts movement and a real crystal, um crystal and they look stunning. People will stop in mid converstion to tell you you have a nice watch. This picture doesn't do it justice, in person they tend to look like they cost about 4-5k.
She will enjoy it the rest of her life and you will feel like a god seeing it on her wrist. Look at the Hampton collection.
Best of luck.