Patek Philippe. Fine and Precious, Calatrava Dual Time, Wristwatch in Yellow Gold, Jumping Hour, Reference 2597, With Extract From the Archives Model: Travel Time Calatrava Reference: 2597 Case Material: Yellow Gold Bracelet Material: Leather Strap Year: 1960 Movement: Manual Caliber: 12-400 HS Case N°: 310486 Movement N°: 729414 Dimensions: 36 mm Signed: Dial, Case and Movement Accessories: Extract from the Archives This lot is a catching specimen of Patek Philippe reference 2597 launched in 1958 during the travel era. The movement is an ingenious system that allows a traveler to keep track of two separate time zones, the caliber 12-400. In the years of its production was available in two versions, a first one, such as this one, featured an independently adjustable hour hand and a later one, which includes an additional hour hand. The two-body case Designed by Louis Cottier and produced by Antoine Gerlach with a snap on back of this 2597 has been realized in 18k yellow gold: its stepped bezel with concave lugs are all incredibly fresh and well preserved. The silvered dial has applied yellow-gold indexes, subsidiary seconds and yellow-gold dauphin hands. Accompanied by a Patek Philippe Extract from the Archives confirming production of the present watch in yellow gold in 1960 and its subsequent sale on 3 February 1961. Estimate € 80000 - 160000A 20% import VAT is due on the final price including premium, only if it is delivered within the EU