you should really contact your local dealer, or contact a dealer off the Richard Mille website. There are basically three types (in different colours) available: Crocodile, calf type leather, or kevlar with a leather backing. It depends on the 'look' you want! The dealer will also be able to tell you the prices.
Hope this helps. Welcome and hope to hear more from you.
Andrew H
PS Having just returned from Mexico I can honestly say that you live in a very beautiful country.