Swiss 18k gold gentleman’s fine lever pocket watch Circa 1903

Open faced pocket watch by Patek Philippe & Cie.
–
A Swiss gentleman’s fine Geneva pocket watch, circa 1903.
18 carat gold polished case with engraved gold dome “Jg. Marenzeller Nachfolger K. u. K. Hoflieferanten Wien“. Signed enamel dial with radial Roman numerals, auxiliary seconds and blued spade hands. Bridge movement, frosted, gilt, “Pat. Jan. 13, 1891”, “Patent 2680”, with wolfteeth winding wheels, lever escapement, gold screw compensation balance, cam type fine adjusting device and  counterpoised “Moustache” lever.
–
Diameter: 48 mm
–
Weight: 92 g
–
Signed: Patek Philippe & Cie. Genève