The need to measure time has existed for several millennia: 5,000 years ago, the ancient Egyptians invented the sundial. Its circular design and time periods shape the look of modern watches to this day. Time measurement was linked to sunlight and therefore only possible during the day. The first independence from daylight led to the water clock. It was followed by the hourglass and in the 14th century the wheel clock. The latter already contains the first basic elements that can currently be found in mechanical watches, but it was very inaccurate. It was equipped with a so-called “Unrast” – a less accurate predecessor of the current used balance wheel.
In 1673 Christiaan Huygens created a spiral spring and balance wheel watch, which was already relatively small and portable.
The way was paved for the development of smaller watches: only a few decades later, in 1812, Abraham-Louis Breguet made, at the request of Queen Carolina Murat, Napoleon’s sister, the first known wristwatch. It was attached to the wrist with a strap.