IWC Portofino Chronograph 39 Watch, 39mm Black Dial, IW391404The Portofino Chronograph 39 combines a classic Portofino design with a touch of sportiness in a compact case size of 39 millimetres. Since 1984, the Portofino has established itself as one of IWC Schaffhausens most successful collections. The timeless and elegant design with the minimalist round case, Roman numerals and simple hour markers appeals to both women and men. For many years, chronographs have formed an integral part of the collection,