Year: Circa 2014
Reference No: 5136/1G-001
Movement No: 3’126’601
Case No: 4’253’329
Material: 18K white gold
Calibre: Automatic, cal. 240Q, 27 jewels
Bracelet/Strap: 18K white gold Patek Philippe bracelet, approximate overall length 170mm
Clasp/Buckle: 18K white gold Patek Philippe clasp
Accessories: Accompanied by Patek Philippe Certificate of Origin dated June 4, 2004 and stamped Beyer Chronometrie AG, wooden presentation box, product literature and outer packaging.

Patek Philippe is renowned for their legendary line of perpetual calendar wristwatches with moon phase dating back to 1941 with the release of the first serialised model, the reference 1526. Complicated and sublime in its “Calatrava” style case, this model was the first in a series of important 20th century timepieces demonstrating Patek Philippe’s excellence in horology. The reference 5136 was released in 2003 as a new perpetual calendar wristwatch for the new millennium, and an upgrade to the reference 3945, which was first introduced in 1987 with bracelet, and a larger, more contemporary case design. The reference 5136 was available until 2008 in both yellow and white gold with superb, detachable gold bracelets, powered by the automatic caliber 240Q movement with microrotor. The present example from circa 2004 is accompanied by the original Certificate of Origin, and stamped Beyer Chronometrie AG. The reference is rarely seen in the marketplace with only approximately 20 known examples.