Wristwatch Database — American Wristwatch Reference
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Hamilton / Model reference

Accumatic A-400

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

Named Hamilton model supported by non-rejected catalog evidence. Punctuation and spacing equivalents reconciled; numbered variants retained. Replacement sources do not establish watch offering dates.

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

6 appearances

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

1962

Hamilton Watch Catalog 1962–1963

Hamilton Watch Company, Lancaster, Pennsylvania · 13

Accumatic A-400

Accumatic A-400; 10K gold-filled; Bracelet

Band
Bracelet printed
Family
Men’s Self-Winding Watches printed
Jewels
17 printed
Seconds
Sweep-second hand printed
Case color
Yellow printed
Mainspring
Unbreakable lifetime mainspring printed
Case material
10K gold-filled printed
Movement type
Automatic / self-winding 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 89.50 · 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 · 13

Accumatic A-400

Accumatic A-400; 10K gold-filled; Strap

Band
Strap printed
Family
Men’s Self-Winding Watches printed
Jewels
17 printed
Seconds
Sweep-second hand printed
Case color
Yellow printed
Mainspring
Unbreakable lifetime mainspring printed
Case material
10K gold-filled printed
Movement type
Automatic / self-winding 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 79.50 · 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.

1963

Hamilton Watch Catalog 1963–1964

Hamilton Watch Company · Printed 12 — Men’s Self-Winding Watches (viewer 14)

Accumatic A-400

10K yellow gold-filled case. Bracelet.

Band
Bracelet printed
Family
Accumatic printed
Case material
10K yellow gold-filled case printed
Movement type
Self-winding / automatic printed
Marketed gender
men printed
Water resistance
Weatherproof (individual caption script) printed

Historical price: USD 89.50 · suggested retail

Own caption band price. Own printed12 footer: All prices include Federal Tax; prices/specifications subject to change without notice; models subject to prior sale. This differs from printed10 plus-tax notice; preserve page-specific wording.

1963

Hamilton Watch Catalog 1963–1964

Hamilton Watch Company · Printed 12 — Men’s Self-Winding Watches (viewer 14)

Accumatic A-400

10K yellow gold-filled case. Strap.

Band
Strap printed
Family
Accumatic printed
Case material
10K yellow gold-filled case printed
Movement type
Self-winding / automatic printed
Marketed gender
men printed
Water resistance
Weatherproof (individual caption script) printed

Historical price: USD 79.50 · suggested retail

Own caption band price. Own printed12 footer: All prices include Federal Tax; prices/specifications subject to change without notice; models subject to prior sale. This differs from printed10 plus-tax notice; preserve page-specific wording.

1964

Hamilton Watch Catalog 1964–1965

Hamilton Watch Company · Printed16 — Men Self-Winding Watches

Accumatic A-400

10K yellow gold-filled case.

Band
Bracelet printed
Family
Accumatic printed
Case material
10K yellow gold-filled case printed
Movement type
Self-winding printed
Marketed gender
men printed
Water resistance
Weatherproof:waterproof/dustproof with seals intact printed

Historical price: USD 95.00 · suggested retail

Own footer suggested retail plus Federal Tax; prices/specifications subject to change without notice; models subject to prior sale.

1964

Hamilton Watch Catalog 1964–1965

Hamilton Watch Company · Printed16 — Men Self-Winding Watches

Accumatic A-400

10K yellow gold-filled case.

Band
Strap printed
Family
Accumatic printed
Case material
10K yellow gold-filled case printed
Movement type
Self-winding printed
Marketed gender
men printed
Water resistance
Weatherproof:waterproof/dustproof with seals intact printed

Historical price: USD 85.00 · suggested retail

Own footer suggested retail plus Federal Tax; prices/specifications subject to change without notice; models subject to prior sale.