The IWC Da Vinci Tourbillon first hit the market back in 1999. This particular version boasts a hand-wound movement with a tourbillon escapement, all while keeping the same size as the original model from 1985. There were a few options for buyers, including a yellow gold option with only 200 pieces made, a platinum version with 50 pieces, a unique 'Four Seasons' model with an engraved dial and only 20 pieces, and a special 'Leonardo' model available in yellow, rose, and white gold with 50 pieces each. Keep in mind that the dial markings could be in German, Italian, English, or French, although our images may not accurately reflect this. The reference number