GÉRALD GENTA, A SKELETONIZED GOLD TOURBILLON PERPETUAL CALENDAR WITH MOON-PHASE, NO. 4, REF. G.4009.4

CIRCA: 1990s
CASE MATERIAL: 18k yellow gold, stepped bezel and "Vendôme" type lugs repeating the bracelet segments
DIAMETER: 35 mm.
STRAP MATERIAL: Black leather strap
DIAL: Skeletonised dial with tritium coated dot indexes, subsidiary dials for the date, days of the week, and the months, apertures for the gold moon phases on a lapis-lazuli background, leap year indication, tritium-coated yellow gold "épée" hands
MOVEMENT: Cal. 23, self-winding engraved gilt brass movement one-minute tourbillon regulator, steel tourbillon carriage in shape of two stylised “G’s”
CLASP: 18K yellow gold Gérald Genta deployant clasp
WITH: Undated and unsigned Certificate of Origin, polished wood presentation box, and outer packaging