Pocket Watch Database

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

American Waltham Watch Co.

Grade: P.S. Bartlett

Manufacturer: Waltham
Manufacturer Location: Waltham, Massachusetts
Movement Serial Number: 170951
Grade: P.S. Bartlett
Model: 1857
Estimated Production Date: June 1865
Run Quantity: 300
Grade/Model Total Production: 293,259
Size: 18s
Jewels: 11j
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 Ledgers
1954 Waltham "Gray Book" List
Case: Various
Registry Population: 7 (2.33%)
Database Version: v49.716

Population Registry for This Run

Image Serial Number Run Position Primary Identification Method Discovery Date
1 170702 #2 Marketplace September 09, 2014
2 170896 #196 Marketplace August 29, 2014
3
Image Credit: pmwas1
170951 #251 Collection April 27, 2013
4 170964 #264 Marketplace November 20, 2014
5 170967 #267 Inferred
6 170976 #276 Inferred
7 170994 #294 Collection August 28, 2016
Standard Deviation of Known Examples: 101.49 (Expected: 86.75, Δ14.75/4.92%)

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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 · September 10, 2019

Serial Number 170890 was reported as accurate.

Changes since this report was submitted:
Adjusted changed from Yes to No

Anonymous · March 8, 2018

Serial Number 170976 was reported as accurate.

Changes since this report was submitted:
Adjusted changed from Yes to No

Anonymous · February 26, 2018

Serial Number 170813 was reported as accurate.

Changes since this report was submitted:
Adjusted changed from Yes to No

Anonymous · April 27, 2013

Serial Number 170951 was reported as accurate.

Changes since this report was submitted:
Adjusted changed from Yes to No

Anonymous · January 28, 2013

Serial Number 170772 was reported as accurate.

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