The watch settles against the wrist with the weight of a quiet heirloom, its polished Aurum-tone case catching the light in soft, sweeping gradients. There is a specific tactile pleasure in the way the domed glass meets the curved edges of the case, creating a silhouette that feels organic rather than manufactured. Paired with the deep, cognac-hued texture of the leather, it evokes the feeling of a rain-washed study—warm, private, and deeply grounded.

Originally born as a high-end boutique brand under the Seiko umbrella, Lassale represented the pinnacle of ultra-thin quartz engineering during the 1980s and early 90s. This reference features the caliber 5A50, a movement specifically designed to maintain a razor-thin profile without compromising the legendary precision of the Suwa factory lineage. It is a relic from an era where Japanese watchmaking sought to challenge the Swiss in the arena of pure luxury, emphasizing thinness as the ultimate expression of horological craft.

Technical Summary

Case width: 18 mm
Lug to lug: 30 mm
Lug/Bracelet width: 12 mm
Max wrist size: 15 cm
Case material: Gold Plated (SGP) / Stainless Steel Back
Dial:  Cream White with fine Breguet-style numerals Cream White with fine Breguet-style numerals
Crystal: Domed Hardlex / Mineral Glass
Movement: Japan Seiko-Lassale Quartz 5A50
Production era: Circa 1987 – 1993
Condition: Excellent vintage condition