Have you seen either one in person? I liked Baume watches in pictures but was disappointed in their fit and finish in person. Tango looks like a higher quality watch in real life.
Take a look at Ebel as well. Their 2 lines most similar in style to what you posted are Beluga Tonneau and Tarawa. I have seen both in real life and they are very pretty and high quality watches. Jomashop has both but it looks like they only carry Tarawa with diamonds. The model without diamonds would be less than $2K.