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History of watches

Watches evolved from portable spring driven clocks, which first in the 15th century. Portable timepieces had been made feasible by the invention from the mainspring. Even though some sources erroneously credit Nuremberg clockmaker Peter Henlein (or Henle or Hele) with inventing the mainspring around 1511, many references to 'clocks without weights' and two surviving examples show that spring powered clocks appeared within the 15th century. Henlein is also often credited with constructing the first pocketwatches, mainly because of a passage by Johann Cochlaus in 1511.

   Peter Hele, nonetheless a young man, fashions functions which even probably the most learned mathematicians admire. He shapes many-wheeled clocks out of small bits of iron, which run and chime the hours with out weights for forty hours, whether or not carried in the breast or inside a handbag

and simply because he was popularized inside a 19th century novel. Nevertheless, numerous German clockmakers had been creating miniature timepieces throughout this period, and there's no evidence Henlein was the first. Also, watches weren't widely worn in pockets until the 17th century.

The first timepieces to be worn, made in 16th century Europe, were transitional in size in between clocks and watches. These 'clock-watches' had been fastened to clothing or worn on a chain around the neck. They were heavy drum shaped cylindrical brass boxes several inches in diameter, engraved and ornamented. They had only an hour hand. The face was not covered with glass, but usually had a hinged brass cover, frequently decoratively pierced with grillwork so the time might be read with out opening. The movement was made of iron or steel and held together with tapered pins and wedges, until screws began to be used following 1550. Many of the movements included striking or alarm mechanisms. They usually had to become wound twice each day. How psychic!