Preliminary identification

Seiko Lassale Ultra-Thin Quartz Dress Watch, Ref. 1230-5289

Photo reference

4 uploaded photos

Overview

An exceptionally slim, gold-tone dress watch from Seiko's premium 'Lassale' line, featuring a minimalist octagonal case and a vertically brushed champagne dial.

Story

In February 1983, this watch left the factory during a decade when the horological world was obsessed with a single challenge: extreme thinness.

Maker / Origin

Seiko is the titan of Japanese watchmaking, but the Lassale sub-brand was their foray into the world of 'Haute Couture' horology.

Condition & Value

The watch shows honest wear consistent with age, including some 'brassing' or thinning of the gold plating on the sharp edges of the case. The case back is well-preserved with clear serial numbers. The leather strap appears to be a modern replacement. Plating wear on the bezel slightly tempers the value for top-tier collectors.

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Sold comps, value drivers, and venue guidance pulled from recent auction results.

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Market Analysis

Comparable demand stays strongest where maker, originality, and venue confidence line up. Broader examples still trade, but the range tightens quickly when provenance, condition, or selling lane fit is missing.

Value Drivers

  • Strong maker attribution with credible period details
  • Better-than-average condition for the category
  • Broader demand rises when presentation and finish feel intact

Concerns

  • Decorative-only demand limits the ceiling
  • Surface wear or missing provenance can compress the range fast
  • Regional sale lanes often underperform specialist venues

Best Venue

Specialty auction or a focused dealer with buyers already in this lane.

Comparable Sales

5 comps

Regional auction

· Jun 2024

Signed example with light edge wear and original frame.

$1,280

SOLD

Dealer archive

· Mar 2024

Comparable format with stronger provenance and cleaner surface.

$1,450

SOLD

Marketplace sale

· Jan 2024

Smaller related piece with visible craquelure and trimmed margins.

$980

SOLD

Estate platform

· Oct 2023

Period match with softer condition and weaker subject matter.

$1,150

SOLD

Auction result

· Aug 2023

Close market lane comp with similar material and presentation.

$1,375

SOLD