A RARE PLATINUM AUTOMATIC ONE-MINUTE TOURBILLON WRISTWATCH WITH DATE AND POWER RESERVE INDICATION, Audemars Piguet, NO. 9, CIRCA 1993

automatic nickel lever movement driven by a pendulum oscillating weight, 41 jewels, mono-metallic compensation balance, adjusted to heat, cold, isochronism and 5 positions, titanium one-minute tourbillon carriage, white matte dial, off-center dial for time with Roman numerals, two subsidiary dials indicating date at 3 and 60 hours power reserve at 9, aperture to reveal the one-minute tourbillon carriage at 6, circular case with brushed band and polished bezel, teardrop lugs, back wind and set, screwed-down case back engraved "Tourbillon No. 09", case, dial and movement signed, with a platinum Audemars Piguet buckle. 

Audemars Piguet introduced this one-minute tourbillon wristwatch in 1991 and it was the world's first self-winding tourbillon wristwatch with date and power reserve indication. Due to its complexity, it is understood that production of this model is limited.