Hamilton / Model reference

T-400

Compare the individual source configurations below with the watch you are identifying.

Named product in a Hamilton factory publication, supported by the individual source transcription and at least two recorded specifications. Exact model designations retained; materials, dial and band alternatives remain source configurations. Research review state is independent of this acceptance.

A similar case or dial is a starting point. Check the documented configuration and any movement evidence before settling on an identification.

Documented source appearances

7 appearances

Dates below belong to publications. Different specifications remain attached to their own source appearance.

1959

Hamilton Watch Catalog 1959–1960

Hamilton Watch Company, Lancaster, Pennsylvania · Automatic printed20 — complete product page

T-400

17 jewels. 10K Yellow Gold-filled Case. Yellow embossed numerals. Luminous dots. Pearled Track. Waterproof*. Bracelet $100.00. Adjacent printed19 original-seal footnote.

Band: Bracelet printed
Family: Thin-o-matic printed
Jewels: 17 printed
Case color: Yellow printed
Minute track: Pearled Track printed
Number color: Yellow printed
Case material: 10K Gold-filled printed
Movement type: Automatic inferred
Dial decoration: Yellow embossed numerals printed
Dial luminosity: Luminous dots printed
Dust resistance: Dustproof printed
Marketed gender: Men printed
Water resistance: Waterproof* (historical catalog claim; adjacent printed19 footnote: provided original seal is properly restored if opened for servicing) printed

Historical price: USD 100.00 · unknown

Own caption Bracelet $100.00;ownprinted20FederalTaxfooter/change/prior sale.USDinferred;audienceunspecified.

1959

Hamilton Watch Catalog 1959–1960

Hamilton Watch Company, Lancaster, Pennsylvania · Automatic printed20 — complete product page

T-400

17 jewels. 10K Yellow Gold-filled Case. Yellow embossed numerals. Luminous dots. Pearled Track. Waterproof*. Strap $89.50. Adjacent printed19 original-seal footnote.

Band: Strap printed
Family: Thin-o-matic printed
Jewels: 17 printed
Case color: Yellow printed
Minute track: Pearled Track printed
Number color: Yellow printed
Case material: 10K Gold-filled printed
Movement type: Automatic inferred
Dial decoration: Yellow embossed numerals printed
Dial luminosity: Luminous dots printed
Dust resistance: Dustproof printed
Marketed gender: Men printed
Water resistance: Waterproof* (historical catalog claim; adjacent printed19 footnote: provided original seal is properly restored if opened for servicing) printed

Historical price: USD 89.50 · unknown

Own caption Strap $89.50;ownprinted20FederalTaxfooter/change/prior sale.USDinferred;audienceunspecified.

1960

Hamilton Watch Catalog 1960–1961

Hamilton Watch Company, Lancaster, Pennsylvania · Automatic printed22 — full product page

T-400

T-400:10K Yellow Gold-filled Case;Yellow Embossed Numerals. Luminous Dots. Pearled Track. OwnWeatherproofcaptionlogoWaterproofDustproof/priorprinted21sealrestorecondition. Priorprinted18Automatic17jLifetimeMainspringAntiShockSweepSecondsgroup;dial substrate unstated.

Band: Strap printed
Family: Thin-o-matic printed
Jewels: 17 printed
Seconds: Sweep seconds printed
Case color: Yellow printed
Mainspring: Lifetime mainspring printed
Minute track: Pearled Track printed
Case material: 10K Gold Filled printed
Movement type: Automatic printed
Dial decoration: Yellow Embossed Numerals printed
Dial luminosity: Luminous Dots printed
Dust resistance: Dustproof — provided original seal is properly restored if opened for servicing printed
Marketed gender: Men printed
Shock resistance: Shock resistant printed
Water resistance: Weatherproof; waterproof — provided original seal is properly restored if opened for servicing printed
Magnetic resistance: Anti-magnetic printed

Historical price: USD 100.00 · unknown

Ownprinted22 Strap $100.00;FederalTaxincluded/change/prior-saleownfooter/USDinferred/audienceunknown.

1960

Hamilton Watch Catalog 1960–1961

Hamilton Watch Company, Lancaster, Pennsylvania · Automatic printed22 — full product page

T-400

Band: Bracelet printed
Family: Thin-o-matic printed
Jewels: 17 printed
Seconds: Sweep seconds printed
Case color: Yellow printed
Mainspring: Lifetime mainspring printed
Minute track: Pearled Track printed
Case material: 10K Gold Filled printed
Movement type: Automatic printed
Dial decoration: Yellow Embossed Numerals printed
Dial luminosity: Luminous Dots printed
Dust resistance: Dustproof — provided original seal is properly restored if opened for servicing printed
Marketed gender: Men printed
Shock resistance: Shock resistant printed
Water resistance: Weatherproof; waterproof — provided original seal is properly restored if opened for servicing printed
Magnetic resistance: Anti-magnetic printed

Historical price: USD 100.00 · unknown

Ownprinted22 Bracelet $100.00;FederalTaxincluded/change/prior-saleownfooter/USDinferred/audienceunknown.

1961

Hamilton Watch Catalog 1961–1962

Hamilton Watch Company, Lancaster, Pennsylvania · Self-winding watches — printed16 — scan18-full50.png

T-400

T-400: {"movement_type": "Automatic / self-winding", "marketed_gender": "Men", "jewels": "17", "mainspring": "Lifetime mainspring", "magnetic_resistance": "Anti-magnetic", "shock_resistance": "Shock-resistant", "seconds": "Sweep seconds", "reserve_claim": "Stores up to 40 hours of reserve running power during a day of wear (preceding printed14 publisher claim)", "case_material": "10K Gold Filled", "band": "Strap and bracelet", "family": "Thin-o-matic", "case_color": "Yellow", "dial_decoration": "Yellow embossed numerals and luminous dots", "dial_track": "Pearled track", "weather_resistance": "Weatherproof", "water_resistance": "Waterproof (provided seals restored if opened)", "dust_resistance": "Dustproof (provided seals restored if opened)"}; Strap and bracelet $100.00. Own18printed16all6captionsvisuallyreadat50/125. Nineofferings:K419Brace100Strap89.50;K420Brace100ONLY/Goldcoloredbackgroundnot14Kgoldsubstrate;T400T401StrapANDbracelet100singlewording;T404WhiteBlacktwoDialoptionsStrapANDbracelet100each;T405Brace100Strap89.50/14KGoldMARKERSANDYellowIncisedMarkers/noNumeralsborrow. ALL6dialmaterialunstated/noSterlingborrow. T401ownnoWeatherproofbadge/preceding14exceptionexplicit;ownbadgesother5sealrestoreconditionretained. SharedAutomatic17jLifetimeMainspringSweepAntiShockreservepreceding14qualified/noElectric505FullyAdjustedNoWindingDynavaroriginborrow. OwnFederalTaxchangepriorsalefooter/USDinferred/audienceunknown. Meninferred/indexpending. NoindependentbandmetalorStrapmaterialassertion.

Band: Strap and bracelet printed
Family: Thin-o-matic printed
Jewels: 17 printed
Seconds: Sweep seconds printed
Case color: Yellow printed
Dial track: Pearled track printed
Mainspring: Lifetime mainspring printed
Case material: 10K Gold Filled printed
Movement type: Automatic / self-winding printed
Reserve claim: Stores up to 40 hours of reserve running power during a day of wear (preceding printed14 publisher claim) printed
Dial decoration: Yellow embossed numerals and luminous dots printed
Dust resistance: Dustproof (provided seals restored if opened) printed
Marketed gender: Men inferred
Shock resistance: Shock-resistant printed
Water resistance: Waterproof (provided seals restored if opened) printed
Weather resistance: Weatherproof printed
Magnetic resistance: Anti-magnetic printed

Historical price: USD 100.00 · unknown

Own caption price; own federal-tax-inclusive/change/prior-sale footer;USD inferred/audience unspecified.

1962

Hamilton Watch Catalog 1962–1963

Hamilton Watch Company, Lancaster, Pennsylvania · 12

Thin-o-matic T-400

Thin-o-matic T-400; 10K gold-filled case; Yellow; Bracelet; Automatic / self-winding; 17; Sweep-second hand; Shock-resistant; Anti-magnetic; Lifetime mainspring; Alternate Masonic dial; Weatherproof (historical claim; seals must remain intact or be restored after opening)

Band: Bracelet printed
Family: Men’s Self-Winding Watches printed
Jewels: 17 printed
Seconds: Sweep-second hand printed
Case color: Yellow printed
Mainspring: Lifetime mainspring printed
Case material: 10K gold-filled case printed
Movement type: Automatic / self-winding printed
Dial decoration: Alternate Masonic dial printed
Marketed gender: men printed
Shock resistance: Shock-resistant printed
Water resistance: Weatherproof (historical claim; seals must remain intact or be restored after opening) printed
Magnetic resistance: Anti-magnetic printed

Historical price: USD 95.00 · suggested retail

Printed p.28 retail price information identifies catalog prices as suggested retail; all prices plus Federal Tax and subject to change without notice.

1962

Hamilton Watch Catalog 1962–1963

Hamilton Watch Company, Lancaster, Pennsylvania · 12

Thin-o-matic T-400

Thin-o-matic T-400; 10K gold-filled case; Yellow; Strap; Automatic / self-winding; 17; Sweep-second hand; Shock-resistant; Anti-magnetic; Lifetime mainspring; Alternate Masonic dial; Weatherproof (historical claim; seals must remain intact or be restored after opening)

Band: Strap printed
Family: Men’s Self-Winding Watches printed
Jewels: 17 printed
Seconds: Sweep-second hand printed
Case color: Yellow printed
Mainspring: Lifetime mainspring printed
Case material: 10K gold-filled case printed
Movement type: Automatic / self-winding printed
Dial decoration: Alternate Masonic dial printed
Marketed gender: men printed
Shock resistance: Shock-resistant printed
Water resistance: Weatherproof (historical claim; seals must remain intact or be restored after opening) printed
Magnetic resistance: Anti-magnetic printed

Historical price: USD 85.00 · suggested retail

Printed p.28 retail price information identifies catalog prices as suggested retail; all prices plus Federal Tax and subject to change without notice.