There is a rhythmic quality to the way the light grazes the center of this dial, reminiscent of fine linen or the inner ridges of a seashell. Against the wrist, the warmth of the Aurum-toned case creates a soft glow that feels like the last ten minutes of a summer sunset. The deep, chocolate-brown embossed leather strap grounds the ethereal dial, offering a tactile richness that suggests this piece was made for quiet afternoons in a well-loved library.

Lassale represents a specific chapter in horological history where Seiko sought to dominate the ultra-thin luxury market. Utilizing the Caliber 1F20, a movement celebrated for its incredibly slim profile, this piece allows the watch to sit almost flush against the skin. The dial features a “tuxedo” layout—a smooth outer ring with Roman numerals framing a vertically pleated center. Produced during the mid-to-late 1980s, it carries the design language of an era that valued poise and thinness over bulk, making it a definitive example of Japanese dress-watch restraint.

Technical Summary

Case width: 21 mm
Lug to lug: 24 mm
Lug/Bracelet width: 12 mm
Max wrist size: 16,5 cm
Case material: Gold-Plated Base Metal
Dial: Cream White with “Pleated” Center Texture
Crystal: Mineral Glass
Movement: Japan Seiko 1F20 Ultra-Thin Quartz
Production era: Circa 1985 – 1990
Condition: Excellent vintage condition