Patek Philippe. Catching and attractive Calatrava, Wristwatch in Steel, with Breguet numerals dial, reference 438 Model: Calatrava Reference: 438 Case Material: Stainless Steel Bracelet Material: Leather Strap Year: 1945 Movement: Manual Caliber: 10 ″ 110 Case N°: 634017 Movement N°: 912067 Dimensions: 28 mm Signed: Dial, Case and Movement Accessories: Extract from the Archives Reference 438 is an uncommon reference made by Patek and was one of the first watch with a waterproof case produced by Patek Philippe. It also comes without the typical snap bezel (to reduce the possibility of dust and moisture entering), with a screw-down case back to protect the movement from the negative effects of the water. What impressed and fascinated was above all its unique design, curved and rounded in all its components except for the bezel. The design of the case is a combination of the strong practicality and the simple elegance of those times and served as an inspiration for the creation of other references like the bigger one 565. This watch undoubtedly represents one of the most refined examples among the 438 known for its almost pristine steel case in excellent condition, its silver dial with superb mat silver finish, the long Patek Philippe & Co signature, the refined Breguet numerals and all the small details equally exciting. Estimate € 6000 - 12000A 20% import VAT is due on the final price including premium, only if it is delivered within the EU