AUDEMARS PIGUET WORLD'S SMALLEST TOURBILLON
Audemars Piguet, "Tourbillon Automatique", No. 138. Made circa 1990.
Very fine, rectangular "galbé," thin, self-winding, 18K yellow gold wristwatch with visible one-minute tourbillon
regulator and oscillating WEIGHT and an 18K yellow gold Audemars Piguet deployment buckle. Accompanied by a
served paper (2014/10/27).
Three-body, solid, polished and brushed, stepped bezel, small teardrop lugs, backwinder, sapphire crystal.
Yellow gold with embossed "Sun Ray" pattern, gold dot indexes for the hours, apertures for the visible tourbillon
regulator with polished steel bridge at 11 and at 6 for the oscillating WEIGHT with the initials "AP". Black
oxidized gold feuille hands.
Cal. 11''', hand engraved, 32 jewels, straight-line lever escapement with visible one-minute tourbillon regulator
with titanium cage, monometallic balance, self-compensating flat balance spring.