The watch meets the wrist with the surprising coolness of smooth stone. Its bracelet isn’t composed of traditional links, but rather a sequence of deep, mossy-green crystalline blocks that catch the light like a forest canopy at dusk. There is a satisfying weight to the piece, a solid presence that feels more like an inherited talisman than a modern accessory. The Aurum-framed case sits at the center, its jet-black dial acting as a quiet void that pulls the eye inward.

This rare specimen is a relic of the Hattori Seiko era, specifically from the Lassale line’s peak in the mid-1980s. Known for pushing the limits of ultra-slim movements, this model utilizes the Japan Quartz 1E50 caliber to maintain a profile that is almost flush with the wrist. The “crystal link” design is a bold departure from the typical metalwork of the period, showcasing Seiko’s experimental phase where they treated the watch case as merely one component in a continuous, sculptural jewelry form.

Technical Summary

Case width: 14 mm
Lug to lug: 20 mm
Lug/Bracelet width: 14 mm
Max wrist size: 15,5 cm
Case material: Gold-Plated Base Metal
Dial: Matte Ink Black with Gilt Roman XII
Crystal: Hardlex Mineral
Movement: Japan Quartz (Cal. 1E50)
Production era: Circa 1980s
Condition: Excellent Condition