1930s IWC Cal.83 Screw-back Calatrava Rare Art-Deco Silver Three-Tone Dial

1930's manufacture International with the famous Cal.83 machine, popular SS waterproof Calatrava design, rare Art Deco silver three tone dial. Equipped with International's famous Cal.83 small seconds machine. The dial is a rare three-tone dial combining silver, mirror circle, and matte white rail track with bull steel material sword stretcher, and is a gem with a wonderful design characteristic of this era and a great taste for texture and good aging. The Calatrava-style screw-back waterproof case is small in size but massive in construction, and is in good condition with sharp edges and original hairlines throughout.