The Richard Mille RM 056 Tourbillon Split-Seconds Chronograph Sapphire ref. RM056 carries the RM 050 split-seconds tourbillon calibre in a case whose bezel, caseband and back are milled from solid sapphire. Machining took more than 1,000 hours, 350 of them for polishing, leaving the complete movement visible through a fully transparent case. Manual-winding tourbillon split-seconds chronograph Calibre RM056; 30-minute totaliser; Power-reserve, torque and function indicators; Tripartite sapphire case with anti-glare treatment; Water resistance to 50 metres. Full set. Maker: Richard Mille. Reference: RM056. Year: 2012. Available through ELITA's private desk — verification review, discreet handling and storage. Price on request. Case Material: Sapphire. Movement: Manual winding — Calibre RM056. Complications: Tourbillon; Split-Seconds Chronograph; 30-Minute Totaliser; Power Reserve Indicator; Torque Indicator; Function Indicator.