Introduction This is a Seiko Quartz open-face pocket watch featuring a crisp white dial with bold Arabic numerals, elegant spade hands, and 'SEIKO QUARTZ' printed at the top right of the dial. The case back carries a commemorative engraving in Japanese reading '79 社団法人 八王子市医師会功労記念', which translates as a 1979 merit commendation from the Hachioji City Medical Association (an incorporated association). The movement is battery-powered quartz, and the watch is running well. Historical / Era context Seiko introduced quartz pocket watches in the 1970s as precision timekeepers for professional and ceremonial use. The calibre 7550 movement family — here the 7550-0010 — was produced in Japan and represents Seiko's transition from mechanical to quartz technology in their pocket watch line. Commemorative presentation watches of this kind were commonly gifted by Japanese professional associations to recognise distinguished service, making this piece a genuine piece of social history from 1979. The five-jewel quartz movement is a testament to Seiko's meticulous engineering even in battery-powered calibres of this era. Condition The watch is running and keeping good time. The watch was checked lying flat (dial up) after a full wind. This is a spot check at the time of listing; as a vintage mechanical watch the rate in actual wear varies with position and winding state, and long-term accuracy is not guaranteed. As a vintage timepiece it may benefit from a service. Case: The chrome-plated case shows light scattered surface wear and minor scuffs on the bezel rim and mid-band consistent with age and handling. The plating remains largely intact with no deep gouges. The caseback is stamped with the model reference and commemorative engraving, both cleanly legible. Dial: The white dial is in good condition with all Arabic numerals and printed text fully legible. There is some light age-related patina visible toward the dial edges, but no significant staining or damage. Crystal: The mineral glass crystal is fitted and in place. It shows some light surface scratching and minor scuffs visible under direct light, but remains sufficiently clear for comfortable reading of the dial. Movement: The watch is running. With the caseback opened, the Seiko Quartz calibre 7550-0010 is visible, signed 'SEIKO QUARTZ JAPAN' on the movement plate and rated at five jewels. The movement is clean with no visible corrosion or damage. Accessories: No box, papers, or chain are included. The watch is sold 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. 62.2 mm Total length including crown and ring: approx. 72 mm Dial color: White Period: 1970-1979 Accessories: None (watch only) In working order: Yes Timekeeping: keeping good time (checked lying flat after a full wind) Closing note A rare, documented 1979 commemorative Seiko quartz pocket watch with genuine provenance from the Hachioji City Medical Association — an unusual and historically grounded piece for the collector of Japanese horological or social history. 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; 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.