Héritage TOURBILLON wristwatch with tonneau-shaped case, curved in two axes, in platinum 950. Hand-wound mechanical movement with tourbillon. 18-carat silvered gold dial, hand-engraved on a rose engine and curved in two axes. Chapter-ring in Roman numerals cut-out in one piece and applied on the dial. Small-second on the tourbillon carriage at 6 o'clock. The ""tourbillon-barrette"" is shaped to serve as index number 50 hours power-reserve. Sapphire-crystal caseback.