Tank "Louis Cartier Men's watch rectangular shape Circa 1920 Case in yellow gold 750 thousandth signed and numbered 22148 and 12738 Engraving on the back "A.P. 22 May 1924 White dial with Roman numerals, blued Breguet hands, signed Paris at 6 o'clock Mechanical hand-wound movement signed European Watch and Clock Dimensions: 24x30mm Leather strap with folding clasp in yellow gold 750 thousandths numbered, hallmarked Edmond Jaeger Gross weight: 31.69gr To be revised Provenance: Eugène P. offered by his father André P. in 1924 then by family descent. Older examples of the Tank model are extremely rare on the market, our example with its clear provenance has all the attributes of the early 1920s model: Breguet hands, spinel winding mechanism and double numbering clearly visible on the back. The production of the tank was extremely low, between 10 and 100 watches per year until 1969. According to the book "Cartier la montre Tank" by Franco Cologni only 67 Tank watches were produced in 1924, for a total of 195 Tank watches produced since the launch of production in 1919.