Swiss stainless steel keyless dress watch Circa 1930

Stainless steel lever dress watch 
–
A very fine and rare Swiss, stainless steel keyless dress watch, circa 1930. A solid, polished case, case back inside with dedication. Matte silver dial with applied stainless steel gold Breguet numerals, outer dot minute markers, subsidiary seconds dial. White gold feuille hands. A rhodium-plated movement, stamped with the Geneva Quality Mark, Geneva striping decoration, 18 jewels, straight-line lever escapement, cut bimetallic balance adjusted to heat, cold, isochronism and five positions, blued steel Breguet balance spring, swan-neck micrometre regulator. Dial, case and movement signed.
–
Diameter: 44 mm
–
Signed: Patek Philippe & Cie  Genève
–
The case has some scratches