Inventor Roger Riehl began development of his SYNCHRONAR wristwatch in 1959 and claims it to be the very first LED watch.  According to Riehl, there were a number of fully working SYNCHRONARs in use prior to PULSAR's prototype demo in May of 1970.

On this site you will find:

• Synchronar documentation - Synchronar specs, features, and complete online documentation consisting of scanned copies of the original manuals for the Mark I and the Mark IV.  Also inventor Roger Riehl's original patent for the watch.
• Riehl Time Archives - Rare material beginning with Roger Riehl's first digital display from 1952; and also including the 1971 newspaper article announcing the launch of his watch with a photograph of one of his fully-functional 1960s prototypes. (Currently under repair/construction)
• Links - to other Synchronar sites.
• The Digital Watch Forum - a discussion area covering all types of digital watches.  A short-cut to this forum is now available at the easy-to-type URL dwf.nu, where "dwf" stands for Digital Watch Forum.
• Photographs of my Synchronar and v-tec alpha.