DIAM. 37 mm. THICKNESS 15 mm. Introduced in 1993 the iconic Patek Philippe reference 5016 was the most complicated wristwatch in production until Patek debuted reference 5002 the Sky Moon Tourbillon in 2001. Patek Philippes 2009-2010 Collection booklet describes the now discontinued reference 5016 as follows: "Its classic Calatrava case in yellow rose or white gold or platinum unites the complications most highly prized by those with a passion for exceptional watches: the tourbillon the minute repeater and the perpetual calendar - completed with a retrograde date hand and a moon phase display. The movement making this masterpiece possible comprises 506 parts." The present lot cased in pink gold features a black dial with applied pink gold Breguet numerals arguably the most attractive combination for this reference. According to our research this is only the third example in pink gold to appear on the auction market and the first featuring a black dial.