Introduction This is a Seiko Quartz open-face pocket watch featuring a bold white dial with Arabic numerals and a sub-seconds register at the 6 o'clock position, powered by a Japanese-made quartz movement with five jewels. The exterior caseback carries an engraved commemorative inscription reading 高崎駅開業100周年記念 — 'Commemorating the 100th Anniversary of the Opening of Takasaki Station' — along with the date 59.5.1 (1 May 1984, Showa 59), making this a documented commemorative piece issued to mark that railway milestone. The caseback also features a chrysanthemum crest motif and the Seiko reference 7550-0010 with movement caliber details. Historical / Era context Takasaki Station, located in Gunma Prefecture, is one of Japan's major inland rail hubs; its centenary in 1984 was a significant occasion in Japanese railway history, and commemorative pocket watches of this type were produced by Seiko as presentation or commemorative gifts. The caliber 7550 is a Seiko quartz pocket-watch movement produced from the late 1970s into the 1980s, continuing Seiko's long tradition of supplying high-quality open-face pocket watches to Japanese institutions and railways. The five-jewel quartz movement reflects the efficient, reliable design philosophy of Seiko's quartz era, and the open-face format with its large Arabic numerals follows the classic Japanese railway-style pocket-watch aesthetic. The caseback date stamp of 59.5.1 (Showa 59, 1 May 1984) precisely documents when this watch was issued or presented. Condition The watch is running at the time of listing. Case: The chrome-plated case shows visible surface scratches, scuffs, and areas of plating wear consistent with age and use — particularly around the mid-band and caseback. The bow and crown are bright and intact. Overall the case remains solid with no dents or deformation. Dial: The white dial is clean and legible with all Arabic numerals crisp and well-defined. There is no significant staining or foxing visible; the dial presents well for its age. Crystal: The acrylic crystal is domed and shows light surface scratches consistent with age; clarity is reasonably good but the crystal is not pristine. No cracks are present. Movement: The watch is running and in good working order as confirmed. The internal caseback carries a battery-replacement sticker with a handwritten service notation. No accuracy issues are reported. Accessories: No original box, papers, or chain are included. The watch is offered as pictured. Please review all photographs carefully for the detailed condition. Specifications Brand: Seiko Model: SEIKO QUARTZ Reference: 7550-0010 Movement: Quartz (quartz) Jewels: 5 jewels Case material: Chromed Case diameter: approx. 50.3 mm Total length including crown: approx. 62 mm Total length including crown and ring: approx. 71.5 mm Dial color: White Period: 1980-1989 Weight: approx. 82 g Accessories: Watch only In working order: Yes Closing note A genuinely documented commemorative Seiko quartz pocket watch — the engraved Takasaki Station centenary inscription and precise Showa 59 date make this a meaningful collector piece for those interested in Japanese railway history or Seiko's commemorative output. Please examine all photographs carefully, as they form part of the description. As with all vintage timepieces, please examine the provided photographs carefully to satisfy yourself with the condition before bidding. The watch is sold as a vintage collectible; long-term accuracy, water resistance and future maintenance are not guaranteed. The item is carefully packed and shipped from Japan with tracking. Import duties, taxes and customs charges are the buyer's responsibility.