As the inventor of the quartz watch in 1969 seiko has led the watch industry for four decades in refining quartz technology for each new generation today seiko also offers a full range of quartz watches powered by light capable of converting all types of light into energy with no battery replacement ever required seiko solar is a bright idea that is good for the planetgents dress watch from the seiko solar collectionpowered by both natural and artificial light no battery changestainless