Ca. Ø 45mm, ca. 55.5 g, 18 K gold, very flat case with reeded mid section, thickness ca. 4mm, Cartier number 3704, very flat precision lever movement, high quality, original Art Nouveau dial with cambered hour register, silvered, signed Cartier Paris, original Breguet steel hands, broken mainspring, original and beautiful condition, from first owner. A comparable watch was sold for more than 10,000 SwissFrancs in 1992 (source: http://www.antiquorum.com/catalog/lots/cartier-lot-141-184?browse_all=1&page=3&q=cartier+couteau).