Introduction This is a Seiko Quartz open-face pocket watch with a clean white dial carrying large, bold Arabic numerals and elegant spade hands — a classic layout that is immediately legible at a glance. The dial is signed 'SEIKO QUARTZ' and carries the Seiko diamond logo beneath the centre. The quartz movement, visible with the caseback opened, is signed 'SEIKO QUARTZ / FIVE 5 JEWELS / JAPAN' and is in running order. Historical / Era context Seiko's open-face pocket watch lineage stretches back to the Seikosha era, and the quartz-converted open-face form continued that tradition for railway staff and institutional users throughout the latter decades of the twentieth century. This example uses a battery-powered quartz movement with five jewels, housed in a chrome-finished round case — practical, robust, and highly legible. The case reference stamped on the exterior caseback reads 'JAPAN 7550-0010', placing it within Seiko's 7550-series quartz pocket watch family. The T-bar chain fob is included. Condition The watch is running and keeping good time. The watch was checked running at the time of listing with a fresh battery. Battery life and long-term accuracy are not guaranteed. As a vintage timepiece it may benefit from a service. Case: The case retains a strong mirror polish on the bezel and caseback. There are scattered fine surface scratches on the case band consistent with normal handling. The caseback exterior stamp is crisp and fully legible. The winding crown and bail ring are intact and undamaged. The plating shows light wear on the case band edges. Dial: The white dial is clean, bright and fully legible with no staining, spotting or discolouration visible. All numerals and the 'SEIKO QUARTZ' text are sharp and undamaged. Crystal: The crystal is clear with no cracks. There are light surface micro-scratches consistent with age, but it does not impede dial legibility. Movement: The watch is running. With the caseback opened, the movement is marked 'SEIKO QUARTZ / FIVE 5 JEWELS / JAPAN'. The circuit board, coil and stepping motor are visible and in clean condition. A silver-oxide cell is fitted. Accessories: A third-party T-bar fob chain is included. No original box or papers are present. 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. 49.1 mm Total length including crown: approx. 62.1 mm Total length including crown and ring: approx. 72.2 mm Dial color: White Period: 1980-1989 Weight: approx. 92 g Accessories: Third-party T-bar fob chain In working order: Yes Timekeeping: keeping good time (checked running with a fresh battery) Closing note A clean, legible, and reliably quartz-driven Seiko open-face pocket watch — an ideal candidate for daily use or display in a collection of Japanese pocket watches. Please examine all photos carefully before bidding. 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.