Pocket Watch Database


From the American Horology Archive:
Waltham Grade Wm. Ellery Pocket Watch
Waltham Grade Wm. Ellery Pocket Watch

American Waltham Watch Co.

Grade: Wm. Ellery

Manufacturer: Waltham Question Mark
Manufacturer Location: Waltham, Massachusetts Question Mark
Movement Serial Number: 340920 Question Mark
Grade: Wm. Ellery Question Mark
Model: 1857 Question Mark
Estimated Production Date: January 1868 - February 28, 1868 Question Mark
Run Quantity: 927 Question Mark
Grade/Model Run: 280 of 958 Question Mark
Grade/Model Total Production: 201,307 Question Mark
Size: 18s Question Mark
Jewels: 11j Question Mark
Movement Configuration: Adaptable Question Mark
Movement Finish: Gilt Question Mark
Movement Setting: Key Question Mark
Plate: Full Plate Question Mark
Adjusted: No Question Mark
Railroad Grade: No Question Mark
Case: Various Question Mark
Run ID: 3886.G347.18S3632.181857M3429.O3882.K3885.11J2304 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: v52.518 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
574.10 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
522.43 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.571% Question Mark
Registry Population:
Scoped for This Run Only
8 (0.86%) Question Mark
$ Estimated Value (12 Month Change): -17.33% Analyzing 714 Sales 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 · April 1, 2022

Serial Number 340432 was reported as accurate.

Anonymous · February 28, 2021

Serial Number 340438 was reported as accurate.

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

Anonymous · April 22, 2015

Serial Number 340426 was reported as accurate.

Changes since this report was submitted:
Adjusted changed from Yes to No
Waltham Grade Wm. Ellery Pocket Watch
Waltham Grade Wm. Ellery Pocket Watch