The Luminous Ceramic IWC Big Pilot Perpetual Calendar Ceralume

From its early adoption of titanium in the 1980s to its extensive work with coloured ceramics in the Top Gun collection, Schaffhausen-based brand IWC has consistently treated materials as a field of innovation. With the introduction of Ceralume as a concept in 2024, IWC explored the idea of a fully luminous ceramic case. Now this technology has entered serial production for the first time, integrated into one of the brand’s most emblematic watches, the Big Pilot’s Watch Perpetual Calendar.

The case follows the current Big Pilot architecture, measuring 46.5mm in diameter and 15.9mm in height. However, its execution is entirely new, even though during the day it looks close to the Lake Tahoe edition. Made from Ceralume, a proprietary ceramic compound infused with Super-LumiNova pigments, the case absorbs light and re-emits it as a vivid blue glow in darkness. The watch has an almost monochromatic white appearance in daylight, with subtle contrasts between matte and polished surfaces. At night, it transforms completely, with the entire case emitting light.

The dial continues this concept. Here in white, and also infused with luminous material, it features applied elements in contrasting tones in an attempt to offer some legibility in daylight. In darkness, the dial becomes a fully glowing surface, with hands and indications appearing as darker silhouettes. The perpetual calendar layout remains unchanged, with displays for day, date, month, year and IWC’s signature Double Moon phase spread across four subdials. The overall result is clearly prioritising concept over traditional readability.

The new IWC Big Pilot’s Watch Perpetual Calendar Ceralume is powered by the in-house calibre 52616, a familiar movement in IWC’s perpetual calendar watches. The automatic uses the Pellaton winding system, reinforced with ceramic components for durability, and delivers a 7-day power reserve. The QP module, originally developed by Kurt Klaus, accounts for varying month lengths and leap years, and requires no correction until 2100. The Double Moon display remains highly precise, deviating by one day only after more than five centuries. Through the sapphire caseback, the movement reveals traditional finishing, alongside a luminous rotor medallion, part of the watch’s central theme.

The watch is worn on a white rubber strap, also enriched with luminous material, to complete the fully glowing concept. It is closed with a stainless steel folding clasp.

Limited to 250 pieces, the Big Pilot’s Watch Perpetual Calendar Ceralume is less about practicality and more about experimentation brought to life. Price is CHF 65,000. For more information, please visit www.iwc.com.