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The Encyclopedia of Horology

Pocket watch · Open-face pocket watch

Waltham Grade 610 Open-Face Pocket Watch

Partially verified

This open-face pocket watch is signed by Waltham and dated by the source to circa 1915 according to movement serial number 20,222,519. The watch is powered by a seven-jewel grade 610 movement that is protected by an inner hinged metal cover. Enclosed in a 50mm gunmetal case exhibiting surface markings and a dark patina, the piece features a contrasting fluted brass winding crown and loop. The white dial displays black Roman numerals, an outer chapter ring, and a subsidiary seconds dial at 6 o'clock, complemented by blued steel hands.

Front view of Waltham open-face pocket watch on clear acrylic stand
Front view of Waltham open-face pocket watch on clear acrylic stand — The Vintage Wrist Watch Company / Sellingantiques. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
www.sellingantiques.co.uk
Category
Pocket watch · Open-face pocket watch
Maker / attribution
Waltham
Reference
Grade 610
Catalogue / lot identifier
SA1225137
Source-reported date
circa 1915
Source-reported place
United States
Source-reported serial
20222519

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

Identity and Dating

This Waltham pocket watch is identified by the dealer as a Grade 610 timepiece. It is powered by a seven-jewel movement.

The timepiece is associated with the serial number 20,222,519, which the source uses to date the watch to 1915.

Evidence for this section
  • “The watch has a seven jewel movement, grade 610”
  • “serial number 20,222,519 which dates it back to 1915”

Case and External Construction

The watch is housed in a gunmetal case with a diameter of 50mm, excluding the winding stem and loop. The case displays surface markings and a patina developed over time.

The winding mechanism features a contrasting brass crown and loop. An inner hinged cover protects the movement and exhibits surface marking.

Evidence for this section
  • “The watch measures 50mm diameter excluding the winding stem and the loop.”
  • “The case is gun metal and, as with many gun metal items, it does have surface marking although it has built up a nice patina over time.”
  • “The movement is protected by an inner hinged cover which has some surface marking.”

Dial and Visual Observations

The white dial is signed 'Waltham' and features black Roman numerals with a subsidiary seconds dial located at the 6 o'clock position. The hands are made of blued steel.

While the dial is described as appearing good to the naked eye, inspection with a jeweller’s loupe reveals a short, faint hairline crack between the center and the sub-seconds dial.

Evidence for this section
  • “The signed dial looks very good to the naked eye.”
  • “If viewed through a jeweller’s loupe, there is a short faint hairline between the centre and the sub seconds dial.”
  • “Blued steel hands.”

Open research questions

  • Do manufacturer production ledgers for serial number 20,222,519 verify a 1915 date of manufacture?
  • Is the current gunmetal case consistent with the standard production specifications for a Waltham Grade 610 movement?

Source evidence

Recorded claims and source quotations for Waltham Grade 610 Open-Face Pocket Watch
FieldSource-reported valueSource quotation
Movement GradeGrade 610“The watch has a seven jewel movement, grade 610”
Serial Number20,222,519“serial number 20,222,519 which dates it back to 1915”
Case Diameter50mm“The watch measures 50mm diameter excluding the winding stem and the loop.”
Case MaterialGun metal“The case is gun metal and, as with many gun metal items, it does have surface marking”
HandsBlued steel“Blued steel hands.”

Visible details

  • White dial with black Roman hour numerals and an outer minute track.
  • Subsidiary seconds dial positioned at the 6 o'clock location.
  • Dial is signed 'Waltham U.S.A.' below the 12 o'clock marker.
  • Fluted brass winding crown and loop bow positioned at 12 o'clock.
  • Dark gunmetal case rim with visible age patina and finish wear.

Research qualifications

  • Movement is not visible in the provided image; movement details are source-reported.
  • Dealer reports a faint hairline crack visible under magnification between the centre and sub-seconds dial.

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

Consulted source

Antique Waltham Pocket Watch, 1915 1900 - 1920 | Sellingantiques

Reviewed 2026-10-22 · Record d6ba946a03

Terms in this record

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