Olchars

Olcars are a type of old-fashioned pocket watch winds up using a flat, rectangular key called an olcar key or olcar fob. They are typically characterized by their distinctive three-pronged key and foliate-shaped watchcase cover. This design allows the user to easily wind the watch using the key, while also protecting the movement and balance wheel inside the case.

The term "olcar" is thought to be of German or French origin, with some sources suggesting it is related to the word "olar," which means "key" or "winder." However, other sources suggest that the term may have been in use in England since the 17th century, and may be related to the Old English word "olcard," which refers to a type of winder or key.

Olcars were popular in the 18th and 19th centuries, particularly in Europe and North America. They were often made by skilled horologists and featured intricate designs and engravings on the watch case and key. Many olcars still exist today, and some are highly sought after by collectors for their beauty and rarity.

The olcar's distinctive design and function have influenced the development of other types of pocket watch winders, including the now-uncommon "perpetual winding" system. However, the traditional olcar remains a unique and interesting piece of horological history.