LITTLE KNOWN FACTS ABOUT WRISTWATCHES.

Many of the early photo voltaic watches of the nineteen seventies had ground breaking and one of a kind styles to support the variety of photo voltaic cells necessary to electric power them (Synchronar, Nepro, Sicura, and a few products by Cristalonic, Alba, Seiko, and Citizen). As the many years progressed as well as the efficiency in the photo vo