Seiko - Lassale Ultra-Slim Two-Tone Tank - 7759-5009

This exceptionally sleek, ultra-thin luxury dress instrument is a striking artifact from December 1983, as definitively verified by the serial number 3D0014 stamped across the stainless steel caseback. Originally acquired by Seiko in 1979, the Swiss-founded Jean Lassale brand represented the absolute pinnacle of ultra-flat quartz engineering during the early 1980s. It houses the high-grade Seiko Caliber 7759 quartz movement, an extraordinarily thin electronic module engineered specifically to achieve near-weightless wrist profile aesthetics without compromising legendary accuracy.

The case architecture features a low-profile rectangular tank design in brushed stainless steel with subtle gold-accented end-links and an inner gold bezel trim. The dial is a masterclass in subtle refinement, displaying a silver-white vertical hairline texture with applied gold stick indices, fine pencil hands, and a gold-framed date window positioned neatly at 6 o'clock. Seamlessly integrated into its factory brushed horizontal-link stainless steel bracelet with a seamless concealed jewelry clasp, this historic piece delivers a high-fashion, retro-luxury aesthetic.