PATEK PHILIPPE. A RARE 18K PINK GOLD PERPETUAL CALENDAR CHRONOGRAPH WRISTWATCH WITH MOON PHASES, 24 HOUR AND LEAP YEAR INDICATION

Reference 5970 was introduced to the market at the Basel Fair in April 2005 and replaced the celebrated reference 3970. The model immediately enjoyed enormous popularity amongst collectors and was available in white gold or pink gold only until 2007 when the production of these two versions ceased. Reference 5970 in yellow gold was in production only in 2008. From 2008 to 2010, the model was available exclusively in platinum.