Brand: Seiko Model: Astron Reference: 8B63-0BD0 Gender: Men Period: 2010s Movement: Solar radio-controlled (Cal. 8B63) Case: Titanium Bracelet: Titanium Dial: Navy blue dial Accessories: Original box This Seiko Astron reference 8B63-0BD0 is a high-performance solar radio-controlled wristwatch featuring Seiko’s advanced Astron technology and lightweight titanium construction. The watch automatically synchronizes with radio time signals and offers world time functionality and a perpetual calendar, ensuring excellent accuracy and everyday practicality. Its titanium construction provides durability and comfort while maintaining a refined modern appearance. Vintage and pre-owned watches may show signs of age and prior use. Water resistance cannot be guaranteed after shipment. • Case width: approximately 43 mm • Wrist size: approximately 17 cm Condition: Seller's internal condition grade: AA Very good condition with minimal signs of use The watch is running at the time of inspection. Long-term accuracy has not been tested. No maintenance history is provided unless stated. Authentic item sourced from Japanese professional reuse market. Returns accepted only if the item differs from description. Seller memo: Internal control number AR-0404D013-Q54