GREUBEL FORSEY DOUBLE TOURBILLON 30° VISION WHITE GOLD
Greubel Forsey, La Chaux-de-Fonds, Swiss, Inventor Watchmakers, "Double Tourbillon 30° Vision", No. 24,
movement No. 0598, case No. 00 574. Sold on Chritmas 2004.
Extremely fine and rare, important, large and heavy, water-resistant, 18K white gold wristwatch with 30° inclined
visible inner one minute tourbillon regulator, visible outer four-minutes tourbillon regulator with four minutes rotation
indicator, twin barrels, 72-hour power reserve and a Greubel Forsey buckle. Accompanied by the user manual/guarantee.
Three-body, solid, polished and brushed, stepped bezel, 3 dimensional, variable geometry-shaped lugs, spiral
of infinity hand-engraved decorated band, transparent case back with 6 screws, convex sapphire crystals.
Silvered 18K gold secured with four blued steel screws, applied white gold graduated Roman numerals and baton
indexes, subsidiary dial for the seconds at 9, power-reserve indication at 3, four minute tourbillon indication between
5 and 7, outer minute division with every five Arabic numerals, aperture for the tourbillions. Blued steel skeletonized
hands, flame-blued polished steel four minute fancy four-armed arrow hand on the tourbillon cage.
Cal. GF02, frosted nickel silver finished in "jade gold," 39 jewels, lateral lever escapement, inner 30° inclined
one-minute tourbillon, three-arm monometallic balance with white gold mean time screws beating at 21.600
oscillations per hour, self-compensating balance spring with Phillips terminal curve, outer four minute
tourbillion under a polished conical hand-finished bridge.