I was contacted by a collector and asked to comment on this subject. I have researched this subject thoroughly for years. I always like to talk facts and base any information I give strictly on facts that I can personally document. Although many people around the world have made claims to inventing the first ?Digital Wrist-Watch? or the first ?Solid State Wrist-Watch? fortunately this is well documented. In all due respect, Mr. Riehl may very well have been working on his wrist-watch but he had no knowledge of what others were working on at the same time, this is why one must timely document it with the U.S. Patent Office so they can make legal claim to an invention. There is much controversy on this issue but documentation is the true measure of fact when it comes to inventing! After all, we all know Al Gore claims to have invented the internet but there just isn't any proof.
John M. Bergey, who I know personally and have discussed this very issue with will be the first to tell you that it took a team of many people from different companies to develop the "First Digital LED Wrist-Watch". They all should be proud to be part of a watch that changed the way the world tells time.
This is not intended to upset anyone?s feelings and if anyone can supply me with factual documentation such as a Patent number to research at the US patent Office then I will be the first to acknowledge it and revise my records. My research
excludes the Jump-Hour wrist-watch that is technically the first wrist-watch displaying the time using numbers on a dial, disc or drum, I emphasized on digits displayed in a row by means of light, my documented research is the following:
The first ?
Digital Wrist-Watch? was invented by John M. Bergey and Kenneth W. Derr, filed on June 25, 1968. This one will surprise most everyone. This invention is the first wristwatch that the time was displayed using digits of light, the seven segment display looks just like the LED displays we know today but the light was supplied using fiber-optics. This digital watch is so unique you just have to see it yourself!
Patent#3,566,602
The first ?
Solid State Wrist-Watch? was invented by Richard S. Walton, filed on October 16, 1968. This is the earliest documented proof of a device that used solid state technology to regulate time. There is no mention of a particular method of displaying the time, just a method to regulate it.
Patent #3,560,998
The first ?
LED Digital Wrist-Watch? was invented by Richard S. Walton, filed on April 22, 1969. This is the first wrist-watch displaying the time using Light Emitting Diodes, the time was supplied by solid state circuitry. This by all means is the first watch to combine both digital and solid state technology in the same timepiece. This is the very invention that led to the development of the Hamilton prototype that eventually became the Pulsar LED wrist-watch.
Patent #3,576,099
The first ?
LCD Digital Wrist-Watch? was invented by Richard S. Walton, filed on May 13, 1969. This is the first wrist-watch displaying the time using a Liquid \Crystal Display, the time was supplied by solid state circuitry.
Patent#3,613,351
The first "
Side View" and the "
First Solar Charged Electric" solid state digital timepiece was invented by Roger W. Riehl, filed on May 3, 1971. Along with some great improvements to earlier inventions this is the first claim to a digital watch that the display is on the side of the watchcase so as to view the time on the side of the timepiece instead of the top surface. Ironically, Bergey's earlier invention #3,566,602 does not make claim to this but is certainly the first concept of the sideview display. Bergey didn't make legal claim to that aspect of his invention so the invention belongs to Mr. Riehl. This also is the first watch to use a solar cell to charge a battery that supplies the power to the electric digital watch, the first wrist-watch solely powered by solar energy without a battery came many years later!
Patent #3,823,551
I urge all who are interested to do the research themselves by going to the U. S. Patent Office website at
http://www.uspto.gov/ and search these patent. There is much more than what I have supplied here so have fun!
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