Pocket Watch Database

From the American Horology Archive:
Waltham Grade P.S. Bartlett Pocket Watch
Waltham Grade P.S. Bartlett Pocket Watch

American Waltham Watch Co.

Grade: P.S. Bartlett

Manufacturer: Waltham
Manufacturer Location: Waltham, Massachusetts
Movement Serial Number: 147110
Grade: P.S. Bartlett
Model: 1857
Estimated Production Date: January 1865 - February 1865
Run Quantity: 400
Grade/Model Run: 1394 of 2837
Grade/Model Total Production: 293,359
Size: 18s
Jewels: 7j
Jewel Material: Ruby
Movement Configuration: Adaptable
Movement Finish: Gilt
Movement Setting: Key
Plate: Full Plate
Balance Type: Solid
Balance Material: Steel
Adjusted: No
Railroad Grade: No
Data Research: c.1900 Waltham Factory Ledger Book 1 [NAWCC]
c.1900 Waltham Factory Ledgers [Ehrhardt Transcription]
1954 Waltham "Gray Book" List
NAWCC Waltham Serial Digest
Case: Various
Run ID: 2621.G1529.18S2440.181857M2237.[1.K2620.7J257
Database Version: v52.245
Advanced Metrics
Registry Population: 2 (0.50%)
Research Note: Waltham Serial Ledgers designate 146,901-147,300 as a continuation of the previous "P.S.B." grade ranges. However, the jeweling is indicated as "Plain" (7 Jewels), and the following range 147,301-148,300 is designated as Wm. Ellery. #147110 has been verified as Wm. Ellery. #147202: Verified as 7-Jewel Movement Marked "P.S. Bartlett."

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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 · March 7, 2023

Serial Number 147202 was reported as inaccurate.

Note: See ebay item 394497399875 - it's clearly marked
PS Bartlett.
Curator Response: Thanks for the report. The database has been updated accordingly.
Changes since this report was submitted:
Jewels changed from 11j to 7J

Anonymous · January 5, 2020

Serial Number 147110 was reported as accurate.

Changes since this report was submitted:
Jewels changed from 11j to 7J
Adjusted changed from Yes to No

Anonymous · December 31, 2019

Serial Number 147110 was reported as accurate.

Changes since this report was submitted:
Jewels changed from 11j to 7J
Adjusted changed from Yes to No

rrenneka Supporter 4 · November 11, 2017

Serial Number 147110 was reported as inaccurate.

Note: Hi 147110 is a Wm. Ellery 11 jewel. It was just
taken completely down to verify jewel count as
well as all parts serial numbers. All parts match
and the jewel count is in fact 11.
Curator Response: Thanks for the followup report and confirmation.
Changes since this report was submitted:
Adjusted changed from Yes to No

rrenneka Supporter 4 · November 4, 2017

Serial Number 147110 was reported as inaccurate.

Note: 147110 is a Wm. Ellery 11 jewel
Curator Response: Thanks for the report and images. I have updated the database according to my analysis.
Changes since this report was submitted:
Adjusted changed from Yes to No

rrenneka Supporter 4 · October 27, 2017

Serial Number 147110 was reported as inaccurate.

Note: I have serial number 147110. It is a Wm. Ellery 11
jewel. I believe the manufacture date to be
between Dec 1864 thru January 1865. Thank you.
Curator Response: Thanks for the report. If possible, please upload an image of the movement to your collection so we can take a closer look.
Changes since this report was submitted:
Adjusted changed from Yes to No

Anonymous · October 13, 2015

Serial Number 147177 was reported as accurate.

Changes since this report was submitted:
Adjusted changed from Yes to No
Waltham Grade P.S. Bartlett Pocket Watch
Waltham Grade P.S. Bartlett Pocket Watch