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Scan for outdated or missing drivers - takes under a minuteDriver Scan →Clear out junk files and repair common Windows errorsFree Scan →Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →IWC’s Ceralume is a luminous ceramic developed by combining ceramic powder with Super-LumiNova photoluminescent pigments. The brand first showed the material in a Pilot’s Watch Chronograph 41 concept in 2024; its announced production debut came in 2026 with the limited-edition Big Pilot’s Watch Perpetual Calendar Ceralume, reference IW505801.
What is IWC Ceralume?
Ceralume is IWC’s proprietary luminous ceramic. Rather than putting luminous paint only on a conventional ceramic case, IWC says it combines ceramic powder with high-grade Super-LumiNova pigments to make the ceramic itself emit light after exposure to light. IWC attributes the development to its engineering division, XPL, with support from experts at RC Tritec. Super-LumiNova is a trademark not owned by IWC. IWC’s 2024 explanation of Ceralume
How does the ceramic glow?
According to IWC, the pigments absorb energy from sunlight or artificial light, store it temporarily, and then release it as visible light. It is photoluminescence, not an electrically powered light or a material that generates light without prior exposure.
The challenge, IWC says, was distributing pigments and ceramic particles of different sizes evenly while retaining the material’s quality. The company developed a customized ball-milling process and adapted the sintering parameters and grinding of the sintered ceramic body. These are IWC’s descriptions of its manufacturing process, rather than independently inspected production findings. IWC’s 2024 technical account
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- [Simple ] - Prevents daily scratches and provides additional . Easy to replace, just place it on top of your watch using the adhesive on the ring.
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IWC reported that a Ceralume concept watch emitted bright bluish light for more than 24 hours in dark-chamber tests. That is a company-reported result for the tested concept, not a guaranteed glow duration for every watch or under every exposure and viewing condition. IWC, 2024
From 2024 concept to 2026 production watch
The dates mark two different stages in Ceralume’s story. On 27 May 2024, IWC announced the technology and presented a Pilot’s Watch Chronograph 41 concept with a Ceralume case, luminous white dial, and white luminous rubber strap. That was a concept watch, not the production perpetual calendar. IWC, 2024
Rank #2
- High quality quartz movement with analog display, provide precise time keeping.
- Ceramic Watches Size | Band Width: 0.55'', Dial Diameter: 1.41'', Case Thickness: 0.39'',
- Swarovski crystal accents & easy to read clean white dial Water Resistant, Luminous Hands, Best Gift for Birthday
- High quality ceramic , shock resistant ceramic watch case ,Removable links which allows for sizing down to even he smallest of wrists
- 30M Waterproof：Water resistant to 30 meters, in general, withstands splashes or brief immersion in water, but not suitable for swimming or bathing, NOTE: Too much water contact or usage in extreme Hot or Cold temperature will shorter watch life.
On 14 April 2026, at Watches and Wonders Geneva, IWC announced Ceralume’s debut in its Pilot’s Watches collection: the Big Pilot’s Watch Perpetual Calendar Ceralume, reference IW505801. The announced production edition is limited to 250 pieces. IWC describes the complete watch as glowing vivid blue for more than 24 hours; this is the manufacturer’s stated performance, not an independent test or a use-condition guarantee. IWC’s 2026 launch announcement
| 2024 Ceralume concept | 2026 production announcement | |
|---|---|---|
| Watch | Pilot’s Watch Chronograph 41 concept | Big Pilot’s Watch Perpetual Calendar Ceralume, Ref. IW505801 |
| Status | Technology concept | Announced limited production, 250 pieces |
| Movement or complication | Chronograph design; production movement specifications were not stated for the concept | Perpetual calendar; IWC-manufactured automatic calibre 52616 |
| Confirmed size and reserve | Not stated in IWC’s cited 2024 account | 46.5 mm case; 168-hour (seven-day) stated power reserve |
Specifications in the 2026 column are from IWC’s launch announcement; concept details are from its 2024 account.
Rank #3
- Coin edge bezel; domed mineral crystal lens; grey glossy dial with silver-tone luminous hands and markers; white printed outer minute track
- Silver-tone adjustable link bracelet with grey resin center links; jewelry clasp and extender
- Japanese-quartz Movement
- Case Diameter: 30mm
- Water resistant to 30m (100ft): in general, withstands splashes or brief immersion in water, but not suitable for swimming or bathing
What are the specifications of Ref. IW505801?
- Case: 46.5 mm luminous white ceramic.
- Dial and strap: White dial and white rubber strap enriched with Super-LumiNova pigments.
- Movement: IWC-manufactured calibre 52616, automatic with Pellaton winding system; stated power reserve is 168 hours, or seven days.
- Calendar: Perpetual calendar displaying the date, weekday, month, moon phase, and four-digit year.
- Double Moon display: IWC states it deviates by one day after 577.5 years.
- Appearance: IWC describes a white-and-grey look in daylight, changing to a bluish glow from the case, dial, and strap in darkness; the hands and numerals appear dark against the luminous dial.
These are manufacturer-stated specifications and descriptions. IWC, 14 April 2026
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Is the IWC Ceralume watch available to buy?
IWC announced Ref. IW505801 as a limited edition of 250 pieces, but the launch information cited here does not establish current stock, regional availability, or a retail price. Check IWC or an authorized retailer for live availability in your market; the announcement alone does not confirm that a piece can currently be ordered.
Quick Recap
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Rank #4
- [EXQUISITE DESIGN] The delicate color and overall exquisite appearance of this ceramic watch bezel insert enhance your watch dial, making it more beautiful. With luminous beads, it illuminates in the dark, assisting you in using your watch in low light environments, adding both style and functionality.
- [PERFECT REPLACEMENT] This watch bezel insert serves as an ideal replacement for old or broken bezels, making it an essential accessory for watchmakers and watch repairers. It restores your watch to its original glory, ensuring reliable performance and a look.
- [EASY INSTALLATION] The bezel ring prevents daily scratches and provides extra for your watch. Simply pick up your watch and place the bezel on top; the adhesive on the ring allows for easy attachment, making replacement quick and hassle free without special tools.
- [PORTABLE AND LIGHTWEIGHT] Light weight and compact in size, this bezel insert is easy to store and carry, fitting neatly into your bag. It is perfect for both home use and professional watch stores, offering convenience for on the go repairs or upgrades.
- [DURABLE CERAMIC MATERIAL] Made of high hardness ceramic materials, this bezel insert is safe, , and to wear and scratches. Its firm and sturdy construction ensures long lasting durability, maintaining its appearance even with daily use.
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