AUDEMARS PIGUET. A RARE SLIM 18K GOLD CUSHION AUTOMATIC TOURBILLON WRISTWATCH

AUDEMARS PIGUET. A RARE SLIM 18K GOLD CUSHION AUTOMATIC TOURBILLON WRISTWATCH
SIGNED AUDEMARS PIGUET, NO. 198, REF. 25643, CIRCA 1988
With lever movement, 32 jewels, one-minute tourbillon carriage made from titanium with mono-metallic compensation balance visible through aperture in the dial at 11 o'clock, hammer-style automatic, automatic weight with AP initials visible through fan-form aperture in the dial at 6 o'clock, champagne sunburst-patterned dial with applied disk numerals, cushion-form case with stepped bezel, the back with winding crown, case, crystal and movement signed, with an 18k gold Audemars Piguet double deployant clasp
39mm length