The IWC Da Vinci Tourbillon was introduced in 1999. In this version the Da Vinci Perpetual Calendar is driven by a hand-wound movement with tourbillon escapement, whilst retaining the dimensions of the original 1985 model.The Da Vinci Tourbillon was available in either yellow gold (200 pieces) or platinum (50 pieces), a yellow gold 'Four Seasons' model with engraved dial (20 pieces), and a 'Leonardo' model in yellow, rose, and white gold (50 pieces each). The dial markings could be in German, Italian, English and French - please note that this is not properly reflected in our images.The Da Vinci Tourbillon Quattro Stagioni reference IW3752-07 has a Yellow Gold case and a solid gold dial engraved by Wolfgang Siegwart with four figures representing the four seasons.
