Preliminary identification

Tissot Seastar Seven with Fluted Bezel, c. 1970

Photo reference

2 uploaded photos

Overview

A classic Swiss mechanical wristwatch featuring a distinctive fluted bezel and a 'monocoque' one-piece case design.

Story

The 'Seastar Seven' name wasn't just marketing; it referred to a specific technical innovation involving seven internal seals designed to keep the movement bone-dry.

Maker / Origin

Founded in 1853 by the father-son duo Charles-Félicien and Charles-Émile Tissot, the company is a titan of the Jura Mountains watchmaking region.

Condition & Value

The acrylic crystal shows significant scratching and a visible crack near the 4 o'clock position, which is common for watches of this age but requires replacement for daily wear. The dial appears to be in excellent original condition with no visible spotting.

Full Research

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

Build on this identification

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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