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The Encyclopedia of Horology

Clock type · Domestic

Banjo Clocks (Patent Timepieces)

Partially verified

American wall clocks with a distinctive banjo-shaped case — a round dial head, narrowing waist, and rectangular base — deriving from designs patented by Simon Willard in the early nineteenth century.

Construction and interpretation

The banjo clock is an American wall clock patented by Simon Willard in 1802, developed at Grafton and later Roxbury, Massachusetts. The consulted source notes that it normally lacks a striking mechanism and shows time by hands and dial alone, so strict usage calls it a timepiece rather than a true clock. The case silhouette — a round dial opening, a long narrowing throat and a rectangular pendulum box with a hinged door — is the identifying feature; throat and door typically carry reverse-painted (verre églomisé) glass panels.

Attribution needs care because the form was copied immediately and continuously. The consulted source states that only about 4,000 authentic Simon Willard banjo clocks were made, while other Willard family members, independent craftsmen and later industrial manufacturers produced the style in quantity, including square- and diamond-dial variants and the heavily gilt girandole type. A banjo-shaped case is therefore evidence of the type, not of Willard manufacture; labels, movement construction and documented provenance must carry any maker claim.

Banjo Clocks (Patent Timepieces): feature and evidence comparison
FeatureWhat it meansEvidence to seek
Willard patent timepiecePatented 1802; about 4,000 authentic examplesLabels, movement and documented provenance
Time-only movementNo striking train in the normal formAbsence of strike work on inspection
Verre églomisé tabletsReverse-painted glass on throat and doorPainting technique and subject matter
Girandole and later variantsRelated forms by imitators and factoriesSeparate type identification, not Willard attribution

The great majority of banjo-style clocks are later imitations; do not assign Simon Willard’s name, or patent-era value, without label and movement evidence.

Evidence to record

  • Treat the silhouette as type evidence, never as maker evidence.
  • Record label positions and wording exactly.
  • Note whether glass tablets are original, repainted or replaced.

Movement & mechanism

  • Weight-driven, typically eight-day, timepiece movement (many original examples were time-only, without striking)
  • Anchor escapement with a pendulum housed in the narrow waist section
  • Often decorated with reverse-painted glass panels on the waist and base

Identification

  • Distinctive banjo silhouette — round head, narrow waist, rectangular base — is immediately identifiable
  • Reverse-painted glass tablets, often depicting patriotic, nautical or floral scenes, on waist and base
  • Patent or maker's labels on the case back, where surviving, assist attribution and dating

Terminology

  • Waist — the narrow central section of the case containing the pendulum
  • Reverse painting — decoration applied to the back of glass panels, viewed through the glass
  • Willard-type banjo clock — clocks following Simon Willard's patented form or its many later imitators

Known variations

  • Willard patent timepiece banjo clock
  • Girandole clock (a related, more elaborate Massachusetts form)
  • Later factory-made banjo-style clocks

Collecting notes

Early, documented Willard-family banjo clocks are highly regarded in American clock collecting; the enormous number of later nineteenth- and twentieth-century imitations makes attribution to an original patent-era maker versus a later reproduction an important distinction.

Photographs

Buy Banjo Clocks For Sale At Auction
Buy Banjo Clocks For Sale At Auction — Invaluable auction archive, Auction archive photograph, rights review pending. Invaluable sold-lot record
FOSTER CAMPOS BANJO CLOCK
FOSTER CAMPOS BANJO CLOCK — Invaluable auction archive, Auction archive photograph, rights review pending. Invaluable sold-lot record

Photographs are illustrative examples of the type, not necessarily the exact object described. Verify details against the source file page.

Sources & references

  1. Palmer, B., A Treasury of American Clocks
  2. https://en.wikipedia.org/wiki/Banjo_clock
  3. Exact attribution of specific surviving banjo clocks to Simon Willard personally versus his workshop or imitators requires case-by-case research.

Where sources disagree, the disagreement is stated rather than resolved silently.