Tourbillon Grand Sport

The open-worked architectural design features a sapphire crystal dial suspended over the mainplate with applied hour indices. It displays handcrafted heat-blued steel hands with droplet-shaped brushed tips, an integrated small seconds subdial driven by a polished titanium hand over the one-minute tourbillon, and an arched torque reserve indication with a matching polished titanium hand.

Measuring 41 mm in diameter and 13 mm in height, the titanium case features alternating brushed and polished finishes, paired with a concave caseband and bezel. It is fitted with a domed sapphire crystal on the front, a sapphire crystal exhibition caseback, and offers water resistance up to 30 meters.

Powered by a handmade and hand-finished manual-winding tourbillon caliber operating at 21,600 vph (3 Hz) with a 50-hour power reserve. The movement showcases an exposed tourbillon escapement beneath an openworked bridge, an exposed mainspring barrel, and keyless works. It features hand-applied Haute Horlogerie finishing throughout, including frosting, various styles of brushing, hand-beveled angles, polished screws and screw-sinks, and fine circular graining.