^ Quartz is cheaper!
My B.B 36 is an automatic (mechanical movement)
For quartz Cartier, where do you change the battery? Cartier store? and how much does it cost each time?
For Quartz you may take it to any watch service repair shop to replace batteries! Although, correct me if Im wrong, but Cartier may or may not service the watch if its been handled by an unauthorized repair shop. Prices vary, but you may do a search on this forum because I have read that automatic watch service is around $500+ USD!