The Richard Mille RM 002-V1 Tourbillon ref. RM 002-V1, introduced in 2001, was the world's first watch with a function selector. Its manual-winding tourbillon movement sits on chassis rubbers rather than a casing ring, visible through a sapphire caseback, here in a red gold tripartite case. Manual-winding tourbillon Calibre RM002-V1; Function selector, power-reserve and torque indicators; ARCAP centre bridges, variable-inertia balance; Tripartite case assembled with 12 grade 5 titanium spline screws; Water resistance to 50 metres. Maker: Richard Mille. Available through ELITA's private desk — verification review, discreet handling and storage. Price on request. Case Size: 45.00 x 38.30 x 11.95 mm. Case Material: 18K red gold. Movement: Manual winding — Calibre RM002-V1. Dial: Skeletonized. Bracelet/Strap: Black rubber strap. Complications: Tourbillon; Function Selector; Power Reserve Indicator; Torque Indicator.