IWC Schaffhausen has introduced the Perpetual Calendar IWC-ProSet™ at Watches and Wonders, marking a significant advancement in mechanical watchmaking. This next-generation innovation brings a fully synchronised, gear-based system that allows both forward and backward calendar adjustments, making it more intuitive and user-friendly than previous mechanisms.
A key highlight of the new system is its exceptional precision, with the moon phase display deviating by just one day over a span of 1,040 years. The innovation is showcased across three editions of the Big Pilot’s Watch, crafted in 18-carat 5N gold, white ceramic, and stainless steel, all powered by the IWC-manufactured 82665 calibre.
The development builds on over four decades of expertise in perpetual calendar complications. Since the introduction of the Da Vinci Perpetual Calendar Chronograph in 1985 by Kurt Klaus, IWC has remained at the forefront of this segment. The IWC-ProSet™ carries this legacy forward, combining traditional craftsmanship with modern engineering advancements.
“The Perpetual Calendar ProSet is a testament to the comprehensive expertise that our watchmakers and engineers have accumulated in mechanical calendar complications. Protected by several patent applications, this groundbreaking innovation radically redefines how a perpetual calendar is set and operated. Its fully synchronised design is entirely based on gears and makes adjusting the calendar forward and backward as easy and intuitive as setting the time,” said Chris Grainger-Herr, CEO of IWC Schaffhausen.
The collection includes multiple variations, such as the Le Petit Prince editions in ceramic and stainless steel with signature blue dials, as well as a gold version featuring an olive green dial. Each model reflects a balance of technical sophistication and refined aesthetics, with interchangeable straps and intricate detailing.
Engineered for ease of use, the new system allows all calendar functions to be adjusted through a single crown position, eliminating the need for additional correctors or complex setting procedures. The mechanism automatically accounts for varying month lengths and leap years, maintaining the traditional functionality while enhancing usability.
IWC has also enhanced the internal mechanics using advanced micro-engineering techniques, including the LIGA process, enabling the creation of highly precise and complex components. The integrated 82665 calibre features a Pellaton winding system and durable materials such as zirconium oxide ceramic, ensuring long-term performance and efficiency.
With the IWC-ProSet™, the brand sets a new benchmark in perpetual calendar watchmaking, combining precision, innovation, and ease of operation in a single, cohesive system.
