Synchronar 2100, solar-powered LED watch

Roger Riehl1973

Lemelson Center for the Study of Invention and Innovation
Washington, DC, United States

Roger Riehl, a self-taught electronics expert, invented one of the first watches to use solar energy. His highly accurate Synchronar 2100 had a recessed light-emitting diode (LED) display on the side of the watch. Synchronar 2100 wristwatch, 1973, gift of Howard Riehl. 2006.0130.01

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Details

Title: Synchronar 2100, solar-powered LED watch
Creator: Roger Riehl
Date Created: 1973
Subject Keywords: Energy, Solar Power, watch, led, L.E.D., light-emitting diode, chronometer
Publisher: Lemelson Center

Lemelson Center for the Study of Invention and Innovation

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