AI Appraisal Estimate

This is a vintage Lassale Seiko dress watch, showcasing the ultra-thin aesthetic characteristic of the late 1970s to early 1980s. The watch features a slim, cushion-shaped or 'TV-screen' style bezel with a two-tone finish; it appears to have a polished gold-tone inner rim contrasting with a brushed stainless steel or silver-tone outer casing. The dial is a dark grey or slate anthracite color with a sunray finish, adorned with thin, applied gold-tone baton hour markers and matching slender hands. The dial is signed 'LASSALE' and 'SEIKO' at the 12 o'clock position and marked 'QUARTZ' at the 6 o'clock position. It is mounted on a black leather strap with a crocodile or alligator grain texture. The watch reflects the high-end craftsmanship of the Lassale line, which Seiko acquired to produce their thinnest, most elegant luxury quartz timepieces. In terms of condition, the case shows minor surface scratches consistent with light wear and age, particularly on the metallic edges. The crystal appears clear with no major cracks visible. The leather strap shows some creasing but remains structurally intact. This piece represents a significant era in horological history when thinness was the ultimate benchmark of technical sophistication in quartz movements.

I have virtually examined this vintage Lassale Seiko Quartz dress watch, a hallmark of the 1980s 'ultra-thin' era. The watch displays the high-quality finishing associated with Seiko’s acquisition of Jean Lassale, specifically the distinctive two-tone cushion case and the refined slate anthracite sunray dial. Condition appears to be 'Good' to 'Very Good'; while the case shows light hairlines on the polished gold-tone inner bezel, the dial remains crisp with no visible oxidation or moisture damage to the baton markers. The current market for vintage Seiko remains strong, though quartz models from the Lassale era occupy a niche. While technically significant for their movement thinness, they generally command lower prices than their mechanical 'Grand Seiko' counterparts. Recent auction and enthusiast market comparables for similar two-tone Lassale models range from $200 to $450 depending on the integrity of the gold plating and the functionality of the movement. The inclusion of a replacement leather strap rather than the original integrated bracelet slightly limits the value to the lower-to-mid range of this bracket. Limitations of this appraisal include the inability to inspect the movement for battery leakage or electronic degradation, which is a common failure point for vintage quartz. Verification of the reference and serial numbers on the case back would be required to confirm the exact production year. A full physical inspection would include a movement test and a check for crown gasket integrity. This valuation assumes the watch is in full working order; if the movement is non-functional, the value would be primarily for parts, dropping to approximately $50 - $75.