Pre-owned Grand Seiko Heritage Collection ref. SBGX361 (2026) proves that exceptional craftsmanship doesn’t require a large case. Measuring just 33mm in diameter and only 9.1mm thick, it is one of the smallest and slimmest watches ever powered by a Grand Seiko 9F quartz movement, with a refined fit that’s equally at home on smaller wrists or with anyone who appreciates classic proportions. The star of the watch is its beautiful light blue “Skyflake” dial, inspired by the snow-covered peaks surrounding the Shinshu Watch Studio, where Grand Seiko’s quartz watches are made. The delicately textured surface captures the appearance of wind-swept snow reflecting a crisp blue winter sky, creating a subtle play of light that reveals new details throughout the day. Powering the watch is Grand Seiko’s newly developed caliber 9F51, a high-accuracy quartz movement engineered to the same exacting standards as the brand’s mechanical calibers.