Swiss pocket watch with 36h power reserve indicator Circa 1925

Gold open faced pocket watch by Paul Ditisheim
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A Swiss fine gentleman’s pocket watch with 36h power reserve indicator, “Fabricado Especialmente Para Luis Balbi Buenos-Aires”, circa 1925.
18 carat gold case with signed gold dome. Signed enamel dial with Roman hours, subsidiary dial for the seconds, subsidiary dial for the 36h power reserve indicator and blued lozenge hands. Bridge movement, rhodium-plated, ground, chatoned, patented “Affix” balance, blued balance spring, patented fine adjusting device.
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Diameter: 50 mm
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Weight: 95 g
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Signed: BalBi, Paul Ditisheim, “Solvil”