Pocket Watch Database

From the American Horology Archive:
Waltham Grade No. 642 Pocket Watch

American Waltham Watch Co.

Grade: No. 642

Manufacturer: Waltham Question Mark
Manufacturer Location: Waltham, Massachusetts Question Mark
Movement Serial Number: 22058270 Question Mark
Grade: No. 642 Question Mark
Model: 1908 Question Mark
Estimated Production Year: 1918 Question Mark
Run Quantity: 1,000 Question Mark
Grade/Model Run: 1 of 2 Question Mark
Grade/Model Total Production: 3,000 Question Mark
Size: 16s Question Mark
Jewels: 17j Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Nickel Question Mark
Movement Setting: Pendant Question Mark
Plate: Bridge Plate Question Mark
Regulator: Ohlson 1908 Question Mark
Hairspring: Breguet Question Mark
Adjusted: Yes Question Mark
Adjusted # of Positions: 5 Question Mark
Railroad Grade: No Question Mark
Case: Various Question Mark
Run ID: 23888.G1.16S3481.161908M1041.O14842.P8954.17J2562 Question Mark
Data Research: 1954 Waltham "Gray Book" List
NAWCC Waltham Serial Digest
Question Mark
Database Version: v52.433 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
9.03 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
8.22 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.009% Question Mark
Registry Population:
Scoped for This Run Only
7 (0.70%) Question Mark

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Verification Reports for this Run

The following reports have been graciously submitted by dedicated members in reference to this production run. These reports are useful to verify data and track inaccuracies that require further research. Please note that reports may contain inaccurate information or assumptions that must be dilligently considered with other available sources.


Anonymous · May 30, 2022

Serial Number 22058077 was reported as accurate.

Msw233 Supporter 90 · January 31, 2022

Serial Number 22058732 was reported as inaccurate.

Note: Both 642 watches I have, and are pictured, are
lever set. I can send pics of the lever on these
movements if it would help.
3,000 produced in 1918, 1500 were pendant set and
1500 were lever set. I would have to do more
research to figure out the difference in the
serial numbers and runs.
Thanks,
Msw233
Curator Response: If possible, could you upload images of the dial showing the lever as well? Thanks for your help in adjusting these runs.

Anonymous · December 11, 2021

Serial Number 22058386 was reported as inaccurate.

Note: Pendant set.
Question railroad grade.
Curator Response: Thanks for the report. I agree. If the movement is pendant-set, it would not have been approved for railroad service on most railroads at the time of production.
Changes since this report was submitted:
Movement Setting changed from Lever to Pendant
Railroad Grade changed from Yes to No

Anonymous · June 14, 2021

Serial Number 22058566 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Lever to Pendant
Railroad Grade changed from Yes to No

Anonymous · April 17, 2020

Serial Number 22058873 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Lever to Pendant
Railroad Grade changed from Yes to No
Plate changed from 3/4 to Bridge

Anonymous · April 15, 2020

Serial Number 22058873 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Lever to Pendant
Railroad Grade changed from Yes to No
Plate changed from 3/4 to Bridge

winterwolf Supporter 97 · February 2, 2019

Serial Number 22058270 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Lever to Pendant
Railroad Grade changed from Yes to No
Plate changed from 3/4 to Bridge

Anonymous · March 7, 2018

Serial Number 22058702 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Lever to Pendant
Railroad Grade changed from Yes to No
Plate changed from 3/4 to Bridge

Anonymous · July 1, 2014

Serial Number 22058486 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Lever to Pendant
Railroad Grade changed from Yes to No
Plate changed from 3/4 to Bridge

Anonymous · July 1, 2014

Serial Number 22058486 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Lever to Pendant
Railroad Grade changed from Yes to No
Plate changed from 3/4 to Bridge

Anonymous · March 29, 2014

Serial Number 22058063 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Lever to Pendant
Railroad Grade changed from Yes to No
Plate changed from 3/4 to Bridge

Msw233 Supporter 90 · November 17, 2013

Serial Number 22058732 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Lever to Pendant
Railroad Grade changed from Yes to No
Plate changed from 3/4 to Bridge

Msw233 Supporter 90 · August 18, 2013

Serial Number 22058788 was reported as inaccurate.

Note: Nickel finish, lever set, adj 5 pos.
Changes since this report was submitted:
Plate changed from 3/4 to Bridge

Dch525 25 · June 13, 2013

Serial Number 22058817 was reported as inaccurate.

Note: Adjusted 5 positions Possibly RR grade.
Changes since this report was submitted:
Plate changed from 3/4 to Bridge

Anonymous · January 26, 2013

Serial Number 22058788 was reported as inaccurate.

Note: lever set, true bridge, adjusted and adjusted to 5
posistions, railroad grade: yes
Changes since this report was submitted:
Plate changed from 3/4 to Bridge
Waltham Grade No. 642 Pocket Watch