GERALD GENTA. A FINE AND RARE PLATINUM AND TANTALUM OCTAGONAL AUTOMATIC TOURBILLON WRISTWATCH WITH RETROGRADE HOURS

GERALD GENTA. A FINE AND RARE PLATINUM AND TANTALUM OCTAGONAL AUTOMATIC TOURBILLON WRISTWATCH WITH RETROGRADE HOURS
SIGNED GERALD GENTA, GENEVE, OCTO TOURBILLON RETROGRADE HOURS MODEL, NO. 57, REF. OTR.Y.76, CASE NO. 121'118, CIRCA 2010
Cal. GG 9051 automatic lever movement, 56 jewels, one minute tourbillon carriage visible through an octagonal glazed aperture, red and black enamel on engine-turned dial, white Arabic numerals, retrograde hours, heavy octagonal case, tantalum bezel, angular downturned lugs, glazed display back secured by eight screws, onyx-set crown, 18k white gold Gerald Genta deployant clasp, case, dial and movement signed
42.5 mm. wide