The Portugieser Yacht Club Chronograph first made its debut in 2015. It has a case that's a tad smaller than earlier Yacht Club models, going from 45.4 to 43.5 millimeters. Its engine is the IWC-manufactured 89361 calibre, which can run for 68 hours without needing a recharge. You'll find a handy small seconds display at 6 o'clock. This particular version, known as reference IW390505, boasts a red gold case, an ardoise dial, and a black rubber strap.