I have had the same difficulty. Only recently have watch brands created watches from the top to bottom specifically for women ( in other words, the movement was specifically designed for women). A lot of times, a movement from a male's watch was taken and diamonds were added to make it a female's watch. There are now watches which are more designed for women ( I am not sure if the movement is the same but there were a lot of modifications)
a. Urwerk Lotus
b. F.P. Journe Elegante Ladies
c. Sarcar jumping frog (watchprosite just recently did a report on this one www.watchprosite.com )
d. Ulysse Nardin Jade
e. Fabergé Lady Compliquée Peacock
f. jaquet droz Lady 8 Flower
g. the two Christopher claret female watches have already been added
Hope you find a watch she likes