PATEK PHILIPPE. Nautilus, ref. 3800/1 circa 1987. Steel wristwatch. Case: cushion-shaped, solid back with signed. Dial: black mesh, applied hour-markers, circular-grained minute track, signed. minute track, signed. Movement: self-winding, cal. 335SC, 29 jewels. Bracelet / Buckle: steel / steel folding clasp, signed and engraved "Nautilus". Wrist size: approx. 17.5cm. Dimensions: 37 x 33mm With 1987 certificate of origin. The watch is in working order at the time of writing, However, we cannot guarantee that it will work in the future. As the watch has not been tested over a long period of time, we do not guarantee the movement and its power reserve. A of the watch is recommended.