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The Encyclopedia of Horology

Wristwatch · Trench wristwatch

Antique silver Waltham Riverside Maximus wristwatch

Partially verified

This early twentieth-century silver wristwatch features a movement signed by Waltham with serial number 14,150,420, which the source dates to 1904. The seller describes a 19-jewel Riverside Maximus grade mechanism equipped with screw-set gold jewel settings, a Breguet hairspring, and an 1892 Church patent regulator, enclosed by an inner hinged dust cover. The circular silver case measures 34.5 mm across excluding the crown and fixed wire lugs, with Birmingham hallmarks inside both case backs for 1914 and maker's marks for Aaron Dennison. The white enamel dial is signed 'Waltham U.S.A.' with Arabic numerals, skeleton hands, and subsidiary seconds at 6 o'clock.

Front three-quarter view of the Waltham Riverside Maximus silver wristwatch on a stand
Front three-quarter view of the Waltham Riverside Maximus silver wristwatch on a stand — The Vintage Wrist Watch Company. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
www.antiques-atlas.com
Category
Wristwatch · Trench wristwatch
Maker / attribution
Waltham
Reference
Not recorded
Catalogue / lot identifier
as170a12565
Source-reported date
1904 (movement), 1914 (case)
Country
United States
Source-reported serial
14150420

Source-reported attribution and specifications are not independent authentication. A listing does not establish present ownership, current display, availability or permission to reproduce.

Object description

Dial and External Features

The watch features a circular polished silver case measuring 34.5 mm in diameter, excluding the winding crown and fixed wire lugs. In visible observation, the piece presents a white dial signed 'Waltham U.S.A.', black-outlined Arabic numerals, an outer minute track, skeleton hands (with a spade- or poire-shaped hour hand), a subsidiary seconds dial at 6 o'clock, and a fluted onion-style crown at 3 o'clock.

According to the seller's description, the signed dial has a light scratch beneath the number 2, and the lens exhibits light marking. The piece is fitted with a new leather strap and presented with a modern presentation box.

Evidence for this section
  • “The watch measures 34.5mm diameter excluding the winding crown and the fixed wire lugs.”
  • “White dial signed 'Waltham U.S.A.' with black-outlined Arabic numerals and outer minute track.”
  • “Subsidiary seconds dial positioned at 6 o'clock.”
  • “The signed dial is in good condition, just a light scratch beneath number 2.”
  • “The lens has light marking but very acceptable.”
  • “A new leather strap has been fitted.”

Case Construction and Hallmarks

The silver case incorporates an inner hinged dust cover to protect the movement. The dealer notes some unevenness on the back of the case.

Hallmarks are reported inside both case backs for Birmingham 1914, accompanied by a maker's mark for Aaron Dennison, described by the dealer as a Birmingham-based case manufacturer for Waltham UK. These interior markings are not directly visible in external photographs.

Evidence for this section
  • “The movement is protected by an inner hinged cover.”
  • “The case is in good condition, just a little unevenness to the back of the watch.”
  • “The case is silver and there are hallmarks inside both of the case backs for Birmingham 1914 with a case maker’s mark for Aaron Dennison, a Birmingham based manufacturer for Waltham UK.”

Reported Movement and Dating Analysis

The internal mechanism is not visible in front photographs. The dealer reports a fully signed 19-jewel Riverside Maximus grade movement equipped with screw-set jewels in gold settings, a Breguet hairspring, and a Church 1892 patent regulator.

The movement serial number 14,150,420 is dated by the seller to 1904. The seller addresses the ten-year span between the 1904 movement date and the 1914 case hallmarks, noting no sign that the movement is a later replacement and suggesting Waltham UK either cased earlier movements from stock or that a period replacement occurred with an identical grade.

Evidence for this section
  • “The watch has a high quality 19-jewel Riverside Maximus grade movement which is working nicely. The movement has screw set jewels with gold settings, a Breguet hairspring and a Church 1892 patent regulator.”
  • “The movement is fully signed and it has the serial number 14,150,420 which dates it back to 1904.”
  • “There is a date discrepancy between the case and the movement however there is no sign at all of the movement being a replacement so either Waltham used earlier movements from stock, or the movement has been replaced with the same grade of movement so it is exactly as it would have been.”

Open research questions

  • What specific hallmark symbols and date letter are struck inside the Dennison case backs to independently corroborate the 1914 assay year?
  • Do factory records or serial ledgers from Waltham confirm the production date and initial delivery format (uncased movement vs. complete watch) for serial 14,150,420?

Source evidence

Recorded claims and source quotations for Antique silver Waltham Riverside Maximus wristwatch
FieldSource-reported valueSource quotation
Movement Grade and Jewels19-jewel Riverside Maximus grade movement“The watch has a high quality 19-jewel Riverside Maximus grade movement which is working nicely.”
Movement Serial Number14,150,420“The movement is fully signed and it has the serial number 14,150,420 which dates it back to 1904.”
Case Dimensions34.5mm diameter“The watch measures 34.5mm diameter excluding the winding crown and the fixed wire lugs.”
Case HallmarksBirmingham 1914 by Aaron Dennison“The case is silver and there are hallmarks inside both of the case backs for Birmingham 1914 with a case maker’s mark for Aaron Dennison, a Birmingham based manufacturer for Waltham UK.”
Regulator PatentChurch 1892 patent regulator“The movement has screw set jewels with gold settings, a Breguet hairspring and a Church 1892 patent regulator.”
StrapNew leather strap fitted“A new leather strap has been fitted.”
PackagingSupplied in a new presentation box“The watch comes in a new presentation box.”
Case Condition NoteMinor unevenness to case back“just a little unevenness to the back of the watch”

Visible details

  • White dial signed 'Waltham U.S.A.' with black-outlined Arabic numerals and outer minute track.
  • Subsidiary seconds dial positioned at 6 o'clock.
  • Skeleton hands with spade/poire-shaped hour hand.
  • Fluted onion-style winding crown at 3 o'clock.
  • Circular polished silver case with narrow fixed wire lugs fitted to a black leather strap.

Research qualifications

  • The seller notes a date discrepancy between the 1904-dated movement and 1914 case hallmarks, hypothesizing either stock movement usage by Waltham UK or a period replacement.
  • Movement details and interior hallmarks are reported by the dealer and are not directly visible in the front photograph.

Photograph identity and source facts were screened before import; rights clearance remains pending.

Consulted source

Antiques Atlas - Antique Silver Waltham Riverside Maximus Watch as170a12565

Reviewed 2026-10-21 · Record 12680f0d1d

Terms in this record

Glossary explanations for terms named in this object’s record.