Vacheron & Constantin, Geneve: A 1910's gold openface keyless pocketwatch in plain case with engraved monogram to the reverse, the engine-turned gilt dial with matt gilt chapter ring and Breguet numerals, subsidiary seconds, blued steel moon hands, the signed nickel plated bar movement with bi-metallic balance, micrometer regulation, jewelled to the centre with 8 adjustments, wolf-tooth winding, numbered 361513, under cuvette