JB Blancpain Fifty? Tourbillon Edition Men's Watch Fully automatic tourbillon 6 o'clock flywheel Simple atmosphere 45MM diameter, stainless steel case Sapphire countdown ring, sapphire mirror with blue coating, super luminous effect. Double-layer sapphire arched mirror, original screw-in waterproof handle, soakable fiber nylon strap (additional strap included) allows you to have both a pin buckle and a folding buckle. Real materials, restore the original temperament, highlight the style of the big name. The new favorite of hardcore players.