Patek Philippe. A fine stainless steel automatic wristwatch with date and 16 mm. bracelet Signed Patek Philippe, Genève, Nautilus model, Ref. 3700/1, movement no. 1’304’187, case no. 534’116, manufactured in 1977 Movement: cal. 28-255 C, automatic, stamped with the Geneva seal, 36 jewels, signed Dial: “type 4”, signed Case: two-part secured by four screws in the band, back engraved “KHR”, bezel inside numbered 116, 42 mm. wide, signed With: stainless steel 16 mm. Patek Philippe Nautilus bracelet with deployant clasp, approximate overall length of bracelet 190 mm., Extract from the Archives confirming production of the present watch in 1977 and its subsequent sale on 7 February 1978.