Case material: White gold; Charge: Automatic; Conditions: Never worn Presentation condition : With dealer guarantee ; Price on request Gmtbroker Reference: 3940G-029 An Unworn  18k  White Gold 175th Anniversary Limited Edition  Perpetual Calendar Gents Wristwatch, rose dial with applied hour markers, month and leap year indicator at 3  0'clock , date and  moonphase  display at 6  0'clock , weekday and am/pm indicator at 9  0'clock , a fixed 18k  white gold bezel, a black leather strap with an 18k white gold deployant clasp, sapphire glass, exhibition caseback , automatic movement, has never been worn,  comes complete with a Patek Philippe box, an additional 18k white gold caseback, an original 18k white gold pusher and Papers. N.B. This is a Limited Edition piece made in celebration of Patek Philippe's 175th Anniversary. It was released at the London Saatchi Gallery Exhibition in 2015, with only a few pieces ever known to be manufactured and sold worldwide, making it a very sought after model and an excellent addition to any collection.