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: 30127
Grade: P.S. Bartlett
Model: 1857
Estimated Production Date: January 1860
Run Quantity: 400
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: 4 (1.00%)
Database Version: v49.391

Population Registry for This Run

Image Serial Number Run Position Primary Identification Method Discovery Date
1 30024 #24 Inferred
2 30105 #105 Collection October 24, 2013
3 30127 #127 Collection March 17, 2017
4 30312 #312 Collection January 08, 2017
Standard Deviation of Known Examples: 121.68 (Expected: 115.61, Δ6.07/1.52%)

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Data Verification Reports

30001
Verification Serial Map
30400

Anonymous · March 17, 2019

Serial Number 30364 was reported as accurate.

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

Anonymous · June 19, 2017

Serial Number 30139 was reported as accurate.

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

MPwatch 1 · June 9, 2017

Serial Number 30341 was reported as inaccurate.

No further details were submitted with the report.
Changes since this report was submitted:
Adjusted changed from Yes to No

Anonymous · May 6, 2017

Serial Number 30012 was reported as accurate.

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

Anonymous · December 24, 2016

Serial Number 30055 was reported as accurate.

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

jamiecatina 2 · October 27, 2013

Serial Number 30105 was reported as accurate.

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

Anonymous · October 24, 2013

Serial Number 30062 was reported as accurate.

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

Anonymous · August 12, 2013

Serial Number 30105 was reported as inaccurate.

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