Casio UV-10 watch is an exceptionally Rare with UV Light Sensor

great condition 

fully serviced and 100% working with new battery fitted

The Casio UV-10 is an exceptionally rare, vintage analogue-digital watch released by Casio during the late 1980s. It stands out in horological history for featuring a specialized built-in ultraviolet (UV) light sensor designed to track sun exposure and calculate safe tanning windows. 

• UV Sensor Module: Driven by the vintage Casio Module 768, the watch houses a prominent round sensor lens on the dial face, positioned just below the 9 o'clock marker. 
• Hybrid Display: The watch blends a traditional analogue dial with physical hands alongside a smaller digital LCD window that populates the active UV intensity metrics and standard timekeeping functions. 
• Collectability: Because it was manufactured in small batches primarily for the Japanese Domestic Market (JDM), it remains a highly sought-after artifact on enthusiast platforms like Etsy and Instagram reels.