Piaget - Black Tie Gouverneur - Tourbillon Watch G0A39116

43 mm 18K rose gold case, small sapphire back, bezel set with 128 brilliant-cut diamonds (approx. 1.4 ct), silvered dial with 18K pink gold hour-markers and moon-phase indication, caliber 642P hand-wound movement with moon phase indicator at 6 o'clock, seconds, hours, minutes, approximately 40 hours of power reserve, brown alligator strap, ardillon buckle.