I agree with Jeff, I'm not a fan of Chanel watches. As for a Tank Francaise, I think you would have to go with a used one also. At least when I last looked on Cartier's website they had trimmed down that collection. There were none with diamonds and It did not even appear that they were making them in all gold. Also, I believe Cartiers that have diamonds are always in all gold, and even used I think that may exceed $8,000. You could certainly do a TF in all steel or steel and gold (neither have diamonds) and they would be well under your budget. My wife has used a large automatic TF as a daily wearer for nearly 10 years and she loves it. She did try a PP 24, but didn't want a quartz watch, although that might not matter to your wife.