Preliminary identification

Seiko SQ Quartz Day-Date, Ref. 8123-7240

Photo reference

3 uploaded photos

Overview

A quintessential 1980s executive dress watch featuring a brushed stainless steel case with a gold-tone bezel and a matching two-tone integrated jubilee bracelet.

Story

In December 1984, when this specific watch was manufactured, the 'Quartz Revolution' had already fundamentally changed how the world told time.

Maker / Origin

Founded in 1881 by Kintarō Hattori in Tokyo, Seiko (meaning 'exquisite' or 'success') has a history of disrupting the status quo.

Condition & Value

The watch appears to be in excellent vintage condition. The gold-tone plating on the bracelet links and bezel shows very little of the typical wear-through (brassing) seen on daily-worn pieces. The crystal appears clear, and the presence of the original box adds a significant premium for collectors.

Full Research

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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