SEIKO WRISTWATCH ASTRON GPS SOLAR / wristwatch, SEIKO Watch Co. / Japan, quartz and solar. Comes with instruction manual, warranty card and box. Watch purchased in 2013. round titanium case with blackened bezel on titanium link bracelet with folding clasp. Black dial with hour, minute, center seconds, date, and other indicator fields with gold-tone accents (multi-indicator and sub-dial). Inscribed on the dial "SEIKO / GPS / Solar / Astron / Japan / 7X52 - 0AA0 HR 2". Inscribed on the back "2N0607 / [...]". Case diameter (without crown) approx. 4.7 cm. (Case and instruction manual with signs of use; watch with minor wear marks; overall good condition). Through the GPS, the watch automatically sets the appropriate time; furthermore, it is possible to choose from 39 time zones. The secondary battery of the watch is charged by light energy. More details about the operation at: http://www.seiko.at/fileadmin/user_upload/kaliber/7x52_kaliber_seiko_Astron_GPS_Solar_.pdf