Introduction Offered here is a SEIKO Radio Wave Control Solar men's wristwatch, reference 7B42-0AT0. This model features a refined black dial with applied silver-tone hour markers, a three-hand analog display, and a practical date window at 3 o'clock. The stainless-steel case is paired with a black leather strap, giving the watch a versatile appearance suitable for business, formal, and everyday wear. Powered by Seiko's radio-controlled solar technology, the watch combines light-powered operation with automatic time correction when a compatible radio signal is successfully received. Historical & Collector Value SEIKO has a long history of developing quartz, solar, and radio-controlled watches, with a strong emphasis on accuracy, reliability, and practical everyday use. The 7B42 caliber represents Seiko's integration of solar charging and radio-controlled timekeeping. The movement stores energy generated from light and is designed to synchronize the time through compatible standard radio signals when reception conditions permit. This 7B42-0AT0 is an appealing example for collectors and users who appreciate Seiko's technologically advanced watches while retaining the appearance of a traditional analog dress watch. The black dial, stainless-steel construction, leather strap, and relatively restrained styling give it a more formal character than many sports-oriented radio-controlled models. Specifications - Brand: SEIKO - Reference: 7B42-0AT0 - Movement: Solar quartz - Caliber: 7B42 - Timekeeping system: Radio-controlled - Display: Analog, three hands - Functions: Hours, minutes, seconds and date - Dial color: Black - Case material: Stainless steel - Strap: Black leather strap as shown in the photos - Crown: Screw-down type - Water-resistance marking: 10 Bar - Serial number: 261280 - Accessories: None stated - Included items: Only the items shown in the photos Condition This is a pre-owned watch and shows signs of previous use. The watch is currently running and, at the time of listing, no significant time deviation has been observed. There are scratches, small marks, and normal signs of wear on the case and case back. Please check all photographs carefully for the exact cosmetic condition. The radio-controlled time-correction function depends on location, reception environment, and compatible transmitter coverage. Long-term radio reception performance and long-term solar charge retention have not been tested. This is a pre-owned / vintage watch. It has signs of use such as scratches, small marks, fading, and wear due to age. Please check all photos carefully, as they are an important part of the description. The watch is running at the time of listing. Time setting and basic functions have been checked unless otherwise stated. Long-term accuracy has not been tested. As this is a used/vintage watch, maintenance or overhaul may be required after purchase. Water resistance is not guaranteed, even if the case or dial has water-resistance markings. Only the items shown in the photos are included. If box, papers, spare links, or accessories are not shown or mentioned, they are not included. Please understand that the condition of vintage watches can be subjective. I describe the item as accurately as possible, but minor signs of age and use should be expected. Service History The watch is running at the time of listing. No significant time deviation has been observed during the current operational check. No documented repair or service history has been provided. Shipping & Customs The watch will be carefully packed for international shipping. Import duties, VAT, customs clearance fees, and any other taxes imposed by the destination country are the responsibility of the buyer and are not included in the purchase price or shipping cost. 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.