Introduction The Seiko Astron GPS Solar Dual-Time represents one of the most technically advanced achievements in modern Japanese horology. As the world's first GPS solar watch, the Astron line embodies Seiko's pioneering spirit and commitment to precision timekeeping. This particular reference features a striking combination of a rose gold-toned case with a black ceramic bezel, offering a bold and luxurious presence on the wrist. Historical & Collector Value Seiko introduced the Astron name in 1969 with the world's first quartz wristwatch, forever changing the watchmaking industry. In 2012, Seiko revived the Astron name with the release of the world's first GPS solar watch, capable of automatically adjusting to any time zone on Earth by receiving GPS satellite signals. This 5X53 caliber model represents the refined evolution of that technology, featuring a slimmer case profile and improved GPS reception speed. The two-tone rose gold and black configuration is particularly sought after by collectors for its distinctive aesthetic, blending sporty functionality with dress-watch elegance. Astron models with this color combination are considered highly desirable within the enthusiast community. Specifications - Brand: Seiko - Model: Astron - Reference Number: 5X53-0AB0 - Movement: Solar Other (Caliber 5X53) - Dial Color: Black - Crystal: Sapphire - Water Resistance: 10 bar (100m) Condition The watch is in very good overall condition. The rose gold-toned case retains its rich luster with only minor signs of light wear consistent with careful use. The black ceramic bezel shows no significant scratches, and the sapphire crystal remains clean and clear. The black dial with rose gold indices is bright and legible, and the rubber strap is in good, supple condition. The original presentation box is included as shown in the photos. Service History This watch has been fully inspected and confirmed to be in working order. Shipping & Customs This item will be shipped from Japan via insured international shipping. Please note: Import duties, taxes, and charges are not included in the item price or shipping costs. These charges are the buyer's responsibility. [!] IMPORTANT - Customs & Import Taxes If customs duties / VAT are not paid by the buyer, the parcel cannot be delivered and will be returned. In such cases, the sale will not be refunded. Please make sure to pay all customs charges promptly.