The IWC Da Vinci Tourbillon debuted in 1999, featuring a hand-wound movement with tourbillon escapement and the same size as the original 1985 model. Available in 200 pieces of yellow gold or 50 pieces of platinum, as well as limited editions such as the 'Four Seasons' model with a beautifully engraved dial (20 pieces) and the 'Leonardo' model in yellow, rose, and white gold (50 pieces each). The dial could display markings in German, Italian, English, or French, although our images may not accurately reflect this. The reference IW3752-01 boasts a yellow gold case and a silver dial.