Swiss silver deck watch with 36h power reserve Circa 1908

Open faced deck watch by Patek Philippe
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A very fine, oversized and heavy Geneva deck watch with 36h power reserve, quality Extra with Bulletin de 1ère classe de l’Observatoire de Genève from 12th of July 1911 and Patek Philippe extract from the archives, circa 1908.
Silver case, polished, cuvette with engraving: “No. 14685 Franz Michaelsen, Horloger Rome, Raffaele Genovesi 1911”. Silvered dial, radial Roman hours, auxiliary seconds, 36h power reserve indicator, numbered, blued spade hands. Bridge movement “Extra”, bevelled, nickel plated, “fausses côtes” decoration, gold chatoned centre wheel, Guillaume gold screw compensation balance, index spring fine adjusting device, counterpoised lever, diamond endstone on balance.
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Diameter: 66 mm
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Weight: 241 g
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Signed: Patek Philippe & Cie. Genève