The watches released by IWC during the 1990s are incredibly collectable for those in the know. It was an era where they transitioned from pure functional tool watches towards luxury, with Kurt Klaus developing a perpetual calendar module, Richard Habring developing a rattrapante chronograph module, and the legendary Günter Blümlein at the helm. In 1997 IWC capped off a run of 1,750 examples of the Portuguese Jubilee with 50 more pieces known as the Pisa: reference 5441-07.

Produced in stainless steel and measuring 42mm, the Pisa edition of the Portuguese Jubilee gets its name from the fact the model was created for and sold exclusively through one retailer at the time, Pisa Orologi of Milan, Italy. The watch is limited to just 50 examples to mark 50 years since the reopening of Pisa after the Second World War, and it coincides with the first 50 years of partnership with IWC. Since, Pisa has gone on to make many retailer-exclusive editions of watches with the likes of Patek, Vacheron, Lange, Panerai, and Bvlgari. The width may sound large, but the Portuguese is historically known for its large width, and this Pisa stands out with its incredible svelteness.