Patek Philippe | A framed drawing of the tourbillon escapement of calibre 89, Circa 1989 | 百達翡麗 | 陀飛輪 calibre 89 連框繪圖，約1989年製

To commemorate the 150th anniversary of Patek Philippe in 1989, the Maison have chosen to introduced the highly important Calibre 89 to celebrate the special day. Featuring an incredible 33 complications and of only four examples known, one each in yellow gold, pink gold, white gold or platinum, the Calibre 89 is one of the most prestigious pocket watch that Patek Philippe have ever made.

The present drawing represents the blueprint of this magnificent watch movement, encapsulating the rich history of Patek Philippe's watchmaking story.