Patek Philippe has forged a new alliance between Haute Horlogerie and Haute Joaillerie in this ultra-exclusive limited edition of 8 watches equipped with a perpetual calendar and a minute repeater. Featuring a platinum case framing a white Bali mother-of-pearl dial, this watch powered by self-winding R 27 Q caliber celebrates the Paraíba tourmaline: one of the world’s rarest and most sought-after gems.