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Tissot Seastar Automatic Vintage Wristwatch

Vintage gold-plated Tissot Seastar Automatic watch on black perlon strap showing heavy wear and dial moisture damage - view 1
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Estimated value

$40 - $90

Rarity

Ordinary(3/10)

Category

Watches

Brand

Tissot

Era

Late 1960s to early 1970s

Origin

🇨🇭 Switzerland

Authenticity

Very High(85%)
14

INSIDE TISSOT SEASTAR AUTOMATIC VINTAGE WRISTWATCH

A vintage Tissot Seastar Automatic, likely dating from the late 1960s to early 1970s. The dial layout features applied baton hour indices alongside a painted minute track, crowned by an applied horizontal 'T' logo and TISSOT script. A framed date aperture sits at the 3 o'clock position. The dial is signed 'T SWISS MADE T' beneath the 6 o'clock marker, indicating the original application of tritium for the luminous plots on the dial and within the baton hands. The watch is constructed with a gold-plated base metal case and a stainless steel screw-down caseback—a standard mid-tier Swiss fabrication protocol for the era. The current strap is an aftermarket woven perlon style, completely incongruent with the original factory presentation.

TIMEKEEPING ACROSS CULTURES

Where This Object Echoes

Mid-Century Modernism1960s-1970s

The stark baton hands and clean stick indices reflect the broader architectural shift away from ornate decorative numerals toward functionalist legibility.

Ritual & Ceremonial Use

  • •The morning ritual of checking the mechanical date complication, a feature that transitioned from luxury to standard necessity during this era's expanding corporate workforce.

Meaning Through Time

1970s vs Modern

Originally marketed as a robust, water-resistant daily tool watch; today viewed as a fragile, dressy vintage collectible requiring careful preservation.

A JOURNEY THROUGH TIME

Tissot registered the Seastar name in the 1950s to designate timepieces engineered for superior water resistance through improved case sealing techniques. During the late 1960s and 1970s—the era of this specific execution—the Seastar line proliferated into a range of robust, daily-wear automatics. ...
Tissot registered the Seastar name in the 1950s to designate timepieces engineered for superior water resistance through improved case sealing techniques. During the late 1960s and 1970s—the era of this specific execution—the Seastar line proliferated into a range of robust, daily-wear automatics. During this period, Tissot operated alongside Omega within the SSIH (Société Suisse pour l'Industrie Horlogère) group. As a result, many Tissot models from this era benefit from shared engineering philosophies, often utilizing highly reliable modified ebauches that matched Omega's lower-tier offerings in terms of durability, positioning the Seastar as an accessible yet robust mechanical workhorse.

HOROLOGICAL SECRETS

1

The 'T' flanking 'SWISS MADE' on the dial is a strict regulatory marking indicating the use of radioactive Tritium-238 for luminescence, which was legally restricted to less than 25mCi of emission.

2

Despite the 'Seastar' nomenclature implying aquatic capability, vintage watches with snap or basic screw backs should never be trusted near water today, as their decades-old rubber gaskets have almost certainly degraded into brittle dust.

HOW SCARCE IS IT?

Ordinary40-55%
CommonLegendary

Standard antiques commonly found at estate sales and flea markets. Plentiful supply meets modest demand.

Typical Characteristics

  • Moderate production runs
  • Common at estate sales
  • Entry-level collectibles

Confidence Factors

  • Standard mid-tier vintage watches in this condition are rarely targets for counterfeiting rings.
  • Dial typography, applied logo depth, and tritium designation codes map precisely to known Tissot factory specifications from the late 60s.
How does authenticity detection work?

WATCHMAKER'S ASSESSMENT

Vintage Watchmaker & Horology Specialist

Horologist

Strong identification based on clear dial branding, standard case architecture, and period-correct tritium markings. Only lacking absolute certainty due to the inability to inspect the movement caliber to assess the extent of the implied water damage.

KEY EVIDENCE

  • 1Applied geometric 'T' logo and specific TISSOT font geometry characteristic of late 60s/early 70s production.
  • 2Presence of 'T SWISS MADE T' indicates factory use of Tritium luminous material, standard for this era.
  • 3Telltale base metal exposure on lug profiles confirms a gold-plated case rather than solid gold or PVD.
  • 4Crescent-shaped staining on the lower dial edge and oxidized hand pinions classically indicate moisture ingress past the crown tube or crystal gasket.

UNCERTAINTIES

  • •Significant moisture stains on the dial strongly imply rust or corrosion on the hidden movement caliber beneath.
  • •Heavy tool galling on the caseback notches indicates the case was previously opened by an amateur without proper horological dies, raising concerns about internal damage.

WHAT WOULD IMPROVE CERTAINTY

  • →Remove the caseback using a properly sized Jaxa or Bergeon tool to inspect the mechanical caliber for rust, oxidation, and verifying the Tissot movement serial number.
  • →Place the watch on a timegrapher to assess balance wheel amplitude, beat error, and daily rate to determine if the mainspring or escapement is functioning.
  • →Test the crown through all positions to ensure the keyless works engage the winding pinion and date corrector properly.

CONDITION & GRADE

Condition

Visually arresting condition issues are present. There is severe gold plating loss primarily isolated to the lug tips and case flanks. The acrylic crystal is heavily scarred, impeding dial legibility. Most concerning is the conspicuous moisture staining pooling at the 6 o'clock marker and oxidizing the baton hands, strongly suggesting historical water ingress that likely compromised the movement's geartrain and keyless works. The caseback shows severe gouging from improper tool slippage during forced opening attempts.

Surface

The gold-plated case shows extensive porosity and base metal exposure on high-friction areas. The acrylic crystal exhibits dense, multi-directional micro-abrasions and deep ruts. The dial surface shows localized blistering and chromatic shifting due to moisture exposure.

Weight & feel

Relatively lightweight on the wrist compared to modern divers, consistent with standard 1960s base metal and acrylic construction. The lack of a solid steel bracelet further reduces the handling weight.

WATCH MARKET VALUE

$40 - $90

Updated: Mar 9, 2026

  • Market comparables from auctions & retail
  • Condition, completeness & craftsmanship
  • Current collector demand & trends
  • Low = quick sale, high = patient seller

For informational purposes only, not a formal appraisal.

YOUR INPUT VS. SCANNER FINDINGS

How your provided context compares with Curiosa.com scanner findings.

What Aligned

  • User stated 'Tissot' and 'Original/Authentic' - Visual evidence of dial font, applied indices, case architecture, and tritium regulatory marks strongly align with genuine period Tissot manufacturing.

What Conflicted

  • User stated 'Minor wear' - This violently contradicts visual evidence. The piece exhibits heavy plating loss, deep crystal gouges, severe caseback tool scratching, and fatal dial moisture staining indicating internal compromise.

FROM THE CABINET OF

RE

Rene

Fellow Collector•44 items

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