The one thing all these watches have in common is their white or blue dial: “In a long and complex process, these dials are coated with up to 12 layers of high-quality lacquer, flat-polished, brushed and then imprinted several times. We drew our inspiration from the unusual aesthetic appeal of the enamelled dials used for the historic Pallweber watches,” explains Christian Knoop, Creative Director at IWC Schaffhausen. The watches with a white dial have blued hands, while those with a blue dial have rhodium-plated hands. The idea for the imprinted dials and blued hands came from the first Portugieser models, Reference IW325, from 1939. All the watches in the collection are fitted with black alligator leather straps. Each model also bears the Jubilee insignia “150 Years”, either as a medallion or as an engraving.