Introduction This Seiko Astron GPS Solar wristwatch represents Seiko’s advanced approach to high-precision timekeeping. Featuring a multi-layer silver dial with multiple sub-dials and a robust stainless steel case, this model combines technical innovation with a refined, modern aesthetic. Historical & Collector Value The Seiko Astron line is historically significant as a symbol of Seiko’s leadership in quartz and satellite-controlled technology. The 5X53 GPS Solar movement allows the watch to automatically adjust time and date via GPS signals, offering exceptional accuracy without the need for regular battery replacement. This reference is appreciated by collectors who value advanced engineering paired with everyday practicality. Specifications • Brand: Seiko • Collection: Astron • Reference: 5X53-0AJ0 • Movement: GPS Solar • Case Material: Stainless steel • Case Back: Stainless steel, screw back • Case Size: 42.4 mm • Dial: Silver • Functions: Time, date, day indicator, world time, GPS time synchronization • Bracelet Material: Stainless steel • Water Resistance: Water resistant Condition Condition: Very Good The watch shows moderate signs of use consistent with careful wear. Light surface scratches are visible on the case, bezel, case back, and bracelet. The dial, hands, and markers remain clean and well preserved, maintaining excellent legibility. Service History Fully tested and confirmed working. Overhauled and serviced. The GPS reception, solar charging, and time-setting functions operate correctly at the time of inspection. Shipping & Customs International shipping is available. All shipping costs, customs duties, and import taxes are the responsibility of the buyer.