The IWC Da Vinci Chronograph made its debut in 2007, as part of a major overhaul of the Da Vinci collection. The traditional round case was swapped for a sleeker tonneau-shaped one, with options for different metals, movements, and dials. This watch runs on the automatic caliber 89360 and features a fly-back chronograph. In 2011, the IW3764-17 replaced the previous model, the IW3764-10. The main change? The strap.