Vacheron & Constantin Aviator's Chronograph
Made on special order for the English Crown in 1925 and sold in 1926 via the Goldsmith’s Company. Presented to Admiral Richard Byrd in commemoration of his 1926 Arctic Expedition. Historically important and possibly unique, extra large and thin, gentleman’s 18K pink gold wristwatch chronometer with co-axial single button chronograph and register. Three-body case, polished and brushed, sloped bezel, downturned lugs. Silvered dial, slightly amber-colored, sand-textured with indelible dauphine numerals on two-tone dial, subsidiary seconds and 30-minute register dials, outer minute/second track with Arabic five-minutes/seconds and 1/5th second scale. Blackened gold "Breguet” hands. Movement: Caliber 17’’’, by Louis Elisée Piguet, rhodium-plated, "fausses-côtes" decoration, 24 jewels, straight line lever escapement, second generation Guillaume balance adjusted to 5 positions and temperature with gold timing screws, Breguet balance-spring, Vacheron Constantin’s micrometer regulator. Diameter. 45 mm. Thickness: 12 mm.