Patek Philippe Gondolo Calendario in Platinum B&P 5135P

A Gondolo Calendario Gents Wristwatch in Platinum, grey dial with a triangular shaped diamonds at 3 and 9 0\'clock,automtic movement, exhibition back, black leather strap with an 18k white gold deployant clasp,day aperture between 10 & 11 0\'clock, date at 12 0\'clock, month window between 1 & 2 0clock, moonphase and AM/PM indicator at 6 0\'clock,sapphire glass, in excellent condition, comes with an original box and papers dated October 2011.