Blancpain now presents a new, world-first version of its tourbillon with a one-week power reserve. Created in 1989 with a manual-winding movement, this masterpiece of watchmaking art has now been fitted with an automatic movement. The case, 38 mm in diameter, is waterresistant to 100 m and has a sapphire crystal and screw-down back. Tritium-treated hands and cabochon hour-markers. The movement comprises 230 fmely decorated and hand-assembled parts.