The IWC Portugieser Chronograph (Reference IW371615) is an elegant watch with a 41 mm stainless steel case and a captivating blue dial. It is powered by a Calibre 69355 automatic movement with chronograph, visible through a sapphire crystal case back. Featuring a classic and refined design, it is presented on a blue alligator leather strap. Water-resistant to 30 metres, this watch combines sophistication and functionality.