Pocket Watch Database


From the American Horology Archive:
Waltham Grade A.T. & Co. Pocket Watch
Waltham Grade A.T. & Co. Pocket Watch

American Waltham Watch Co.

Grade: A.T. & Co.

Manufacturer: Waltham Question Mark
Manufacturer Location: Waltham, Massachusetts Question Mark
Movement Serial Number: 311707 Question Mark
Grade: A.T. & Co. Question Mark
Model: 1857 Question Mark
Estimated Production Date: July 1867 Question Mark
Run Quantity: 190 Question Mark
Grade/Model Run: 783 of 1152 Question Mark
Grade/Model Total Production: 60,258 Question Mark
Size: 18s Question Mark
Jewels: 15j Question Mark
Movement Configuration: Adaptable Question Mark
Movement Finish: Gilt Question Mark
Movement Setting: Key Question Mark
Plate: Full 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: 3771.G945.18S3523.181857M3320.O3767.K3770.15J857 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: v52.516 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
165.73 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
150.82 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.165% Question Mark
Registry Population:
Scoped for This Run Only
4 (2.11%) Question Mark
$ Estimated Value (12 Month Change): 2.16% Analyzing 393 Sales Question Mark
Research Note: #311609: Reported to feature a compensation balance with gold screws instead of the solid gold balance indicated in Waltham Serial Ledgers.

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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 · February 12, 2021

Serial Number 311744 was reported as accurate.

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

Anonymous · July 4, 2018

Serial Number 311609 was reported as inaccurate.

Note: 311609 Has a split compensated balance wheel with
gold screws, like
normal for an AT&Co grade of 1867. It does not
have a solid gold
balance wheel. Keith R...
Changes since this report was submitted:
Adjusted changed from Yes to No

Anonymous · March 30, 2018

Serial Number 311609 was reported as accurate.

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

Anonymous · February 27, 2018

Serial Number 311743 was reported as accurate.

Changes since this report was submitted:
Adjusted changed from Yes to No
Waltham Grade A.T. & Co. Pocket Watch
Waltham Grade A.T. & Co. Pocket Watch