Wonderful on-board clock with rare 24-hour display in original Heuer grandezza Switzerland, 1968 story of this watch # Heuer 24h Master Timer nos # Signed on dial, original movement and original packaging # Serial number 21182 # Very rare water-resistant 8-day movement # Dashboard clock for cars, motor yachts and airplanes # 54mm (58mm with lid cover) # Original condition with original packaging, Heuer guide and original screw set # Revolutionary 24-hour movement and 1st generation hand-wound movement # 1968s # Switzerland # Acquired from an American collector Technically, the Heuer works perfectly and has been freshly revised: (320°; +8s/d). The watch shows hardly any signs of wear. There are no deep scratches, dents or similar, the glass is scratch-free. Story of the brand The watch brand Heuer, now known as tag Heuer, has a fascinating history and some remarkable features: #1 Pioneer of the chronograph Heuer was a pioneer in the development and manufacture of chronographs. The brand has introduced many significant innovations in this field and is renowned for its precision and reliability. #2 Close connection to motorsport Heuer has a strong connection to motorsport and has long been associated with renowned racing series and drivers. The brand was one of the first sponsors of racing events and has developed numerous special motorsport watches. #3 Precision and timekeeping Heuer watches are known for their high precision and accuracy. The brand has achieved several technical breakthroughs in timekeeping and was instrumental in the development of mechanical chronograph movements. #4 Innovative design Heuer has created many iconic designs over the years that are known for their sporty elegance and unmistakable style. The brand has produced a number of watch models that have become classics, such as the Heuer Monaco with a square case. #5 High-quality materials and workmanship Heuer uses high-quality materials and attaches great importance to quality and workmanship. The watches are robust, durable and precisely manufactured. #6 Contemporary collaborations and innovations Over the years, Heuer has repeatedly teamed up with leading personalities and brands from various fields such as motorsport, art and lifestyle to create unique special editions and innovations. Heuer's company history is characterized by technical innovation, groundbreaking design and a close connection to motorsport. The brand has won over a large number of watch lovers and motorsport enthusiasts. Today, tag Heuer continues the brand's tradition and remains a respected brand in the watch industry, known for its precision, design and connection to motorsport.