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 Question Mark
Manufacturer Location: Waltham, Massachusetts Question Mark
Movement Serial Number: 508073 Question Mark
Grade: P.S. Bartlett Question Mark
Model: 1865 Question Mark
Estimated Production Date: January 1871 - March 1, 1871 Question Mark
Run Quantity: 300 Question Mark
Grade/Model Run: 23 of 70 Question Mark
Grade/Model Total Production: 21,139 Question Mark
Size: 10s Question Mark
Jewels: 15j Question Mark
Jewel Material: Ruby Question Mark
Movement Configuration: Adaptable Question Mark
Movement Finish: Gilt Question Mark
Movement Setting: Key Question Mark
Plate: 3/4 Plate Question Mark
Balance Type: Solid Question Mark
Balance Material: Gold Question Mark
Adjusted: No Question Mark
Railroad Grade: No Question Mark
Case: Various Question Mark
Run ID: 4793.G2723.10S147.101865M44.E1.K4783.15J1176 Question Mark
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
Question Mark
Database Version: v52.528 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
0.90 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.82 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.001% Question Mark
Registry Population:
Scoped for This Run Only
3 (1.00%) Question Mark
Research Note: Waltham Serial Lists erroneously designate this run as 10-Size Model "57." However, this run should be classified as 10-Size Model 1865 instead, confirmed by movement #508073.

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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.


cmould Supporter 192 · March 23, 2023

Serial Number 508073 was reported as accurate.

Anonymous · November 14, 2014

Serial Number 508120 was reported as inaccurate.

No further details were submitted with the report.
Changes since this report was submitted:
Size changed from 18 to 10
Factory Model changed from 1857 to 1865
Plate changed from Unknown to 3/4

Anonymous · October 28, 2014

Serial Number 508071 was reported as accurate.

Changes since this report was submitted:
Size changed from 18 to 10
Factory Model changed from 1857 to 1865
Waltham Grade P.S. Bartlett Pocket Watch