[Introduction] SEIKO Brightz Ref. 7B25-0AC0 – Radio Wave Control Solar Titanium Watch This SEIKO Brightz Ref. 7B25-0AC0 is a sophisticated radio-controlled solar wristwatch crafted in lightweight titanium. The model features a refined black dial with applied baton indices and a world time bezel engraved with major cities. The dial is marked “Radio Wave Control,” “World Time,” and “Solar,” indicating its advanced functionality. It receives standard radio signals (DCF77 / JJY40 / JJY60 / WWVB) for automatic time adjustment and is powered by light, eliminating the need for regular battery replacement. A date display is positioned at 3 o’clock for daily practicality. [Historical & Collector Value] The Brightz line represents SEIKO’s focus on advanced technology combined with high-quality finishing for the domestic market. Models equipped with the 7B25 radio-controlled solar movement are known for accuracy, reliability, and convenience. The titanium case offers reduced weight and enhanced wearing comfort, while maintaining durability and corrosion resistance. With its world time functionality and radio synchronization capability, this reference appeals to collectors and users seeking a technologically advanced yet elegant Japanese timepiece. Specifications ◇Brand: SEIKO ◇Model: Brightz ◇Reference: 7B25-0AC0 ◇Movement: Solar radio-controlled (Cal. 7B25) ◇Function: Hours, minutes, seconds, date, world time, radio signal reception ◇Dial: Black with applied baton indices ◇Case material: Titanium ◇Case back: Titanium (screw back) ◇Water resistance: 10 BAR (as indicated on case back) ◇Bezel: Engraved world time city ring ◇Crystal: Sapphire crystal ◇Strap: Black leather strap ◇Clasp: SEIKO-signed deployant clasp ◇Case size: 41 mm (excluding crown) ◇Wrist size: 17–19 cm ・Condition The case shows minor surface scratches consistent with normal use. The bezel engravings remain clear. The leather strap shows signs of wear and creasing from use. The dial and hands remain clean and legible. Please refer to the photographs for detailed condition assessment. ・Service History Operational checks have been performed and the watch is functioning, including solar charging and radio signal reception. As this is a pre-owned watch, future maintenance may be required depending on usage conditions and the buyer’s standards. ・Shipping & Customs The watch will be carefully packed and shipped from Japan. International shipping is available. Please note that any customs duties, import taxes, or related fees are the responsibility of the buyer.