Richard Mille - RM 017 - Tourbillon Extra FlatReference: RM 017 Model: Tourbillon Extra Flat Calibre RM017 Manual winding, extra flat tourbillon movement with hours, minutes, power reserve and function indicators. The RM 017 tourbillon was the first rectangular case shape in the tourbillon range, continuing the development of the rectangular case first launched with the RM 016. As with each Richard Mille watch, the RM 017 symbolized the Haute Horlogerie values of both tradition and excellence. As