Seiko Selection SBTM359 Watch with Date Sapphire and Stainless Steel Japanese-Made Men's Solar-Powered Radio-Controlled Calendar, Blue-Gray Dial,

Solar radio wave correction (receives standard radio waves from Japan, China, the United States, Germany, and the United Kingdom) Approximately 9 months of operation when fully charged, approximately 2 years when in power save mode Fully automatic calendar function (until December 31, 2099) Automatic reception function Time difference adjustment function