Coin clock
As a coin watch , even Münzuhr one will watch referred to in a coin or medal is embedded.
description
A coin watch is usually made by dividing a coin horizontally into two plates of different thicknesses. The movement is then embedded in the thicker part that has been milled out . The two panels are connected by a hidden hinge . The movements of such clocks must be extremely flat. When closed, the watch is completely hidden and the coin looks like any other.
history
Coin clocks were often made in Switzerland in the first half of the 19th century . Between 1835 and 1840, such small and flat movements were built in Geneva that they could fit into an English sixpence coin . The thaler clocks by Friedrich Emil Roetig from Hachenburg are also known from the same period .
Today, wristwatches that only have the dial in the shape of a coin are also sold as coin-operated watches .
Web links
- Coin Watch in Christie's
- Coin Watch in TimeZone (English)
Individual evidence
- ↑ Fritz von Osterhausen: Callweys lexicon. Munich 1999, ISBN 3-7667-1353-1 , p. 217
- ↑ Lukas Stolberg: Lexicon of the pocket watch. Carinthia Verlag, Klagenfurt 1995, ISBN 3-85378-423-2 , p. 144