Discover the most expensive clocks ever sold, their prices, and why these rare timepieces are so valuable to collectors and ...

Zenith's Chronomaster Original Triple Calendar has had some stunning variations, but this stone dial is the best it has ever ...

Limited to 135 pieces, the watch is open-worked to show off its mechanical architecture ... moon phase at 6 o’clock. Carl F. Bucherer Manero Peripheral Perpetual Calendar Last fall, Carl ...

A masterpiece. There is no other word to describe the wood micro-marquetry Dome table clock, presented by Patek Philippe. The ...

Luckily, I had a duplicate in the parts pile,” he said. A clock from the late 1860s with a mechanical calendar tells the time and date, even adjusting for a leap year. The oldest timepiece in ...

Making a regular clock movement slow down so that what normally takes an hour takes a month without making any mechanical changes requires some clever hacks. [Josh] decided to use an Arduino to ...

Fresh research about ripples in the fabric of spacetime suggests a nearly 2,000-year-old cosmic calculator followed the lunar calendar instead ... The box-shaped mechanical computer used gears ...

“His Water-Driven Spherical Bird’s-Eye-View Map of the Heaven” not only served as a calendar ... American Levi Hutchens created a mechanical alarm clock with the specific purpose of waking ...

The artifact turned out to be a surprisingly complex—though fragmented—mechanical ... clock) that pointed to the positions of the Sun and Moon in the zodiac, future eclipses, the Egyptian ...

Researchers may have solved one lingering mystery behind the world’s oldest known mechanical computer using ... accurately predict future astronomical calendar events like planetary movements ...