Part of our Made in Britain range: a clockwork pendant necklace by the English jewellers, Leonard of London.
These pendants feature the exposed inside workings of vintage watches and show the usually hidden gem stone jewel bearings that exist within many watches. These are included within clock workings as their low and predictable friction improves watch accuracy as well as improving bearing life.
Made by hand in the UK, the watch fixtures are set in 85% recycled silver and presented on an 18 inch sterling silver chain with added decorative details.
More about the watch movements
Jewel bearings were invented in 1704 for use in watches by Nicolas Fatio de Duillier, Peter Debaufre, and Jacob Debaufre, who received an English patent for the idea.
Originally natural jewels were used, such as diamond, sapphire, ruby, and garnet. In 1902, a process to make synthetic sapphire and ruby (crystalline aluminium oxide, also known as corundum) was invented by Auguste Verneuil, making jewelled bearings much cheaper.
Today most jewelled bearings are synthetic ruby or sapphire.