Ring watch

Finger ring with clock, Geneva , around 1800 German Clock Museum

The ring watch , even Fingerringuhr called, is a small, into a finger ring incorporated pm . Ring clocks with striking mechanisms were already being made in the 16th and 17th centuries . Transparent gemstones or hinged sealing stones were used to protect the dial. The difficult thing was the miniaturization of the movement, which was the size of a wristwatch . John Arnold made such a watch with a repeater strike mechanism for King George III in 1763 .

literature

• Helmut Kahlert , Richard Mühe , Gisbert L. Brunner : Wristwatches: 100 years of development history . Callwey, Munich 1983; further edition 1990, ISBN 978-3-7667-0975-2 ; 5th, extended edition (with a price guide by Stefan Muser, the owner of the Mannheim auction house Dr. Crott ) ibid 1996, ISBN 3-7667-1241-1 , pp. 10-12.

Web links

Commons : Ring watches  - collection of pictures, videos and audio files

• Ring watch in UhrenLexikon
• Ringuhr Staatliche Kunstsammlungen Dresden

Individual evidence

1. ↑ Viktor Pröstler: Callweys manual of the clock types. From the wristwatch to the zappler . Callwey Munich 1994, ISBN 3-7667-1098-2 ; P. 158
2. ↑ Rudi Koch (Ed.): BI-Lexikon - Clocks and Time Measurement , VEB Leipzig, 1986, ISBN 3-323-00100-1 ; P. 175
3. ↑ Fritz von Osterhausen: Callweys lexicon . Munich 1999, ISBN 3-7667-1353-1 ; P. 275