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
Manufacturer Location: Waltham, Massachusetts
Movement Serial Number: 311707
Grade: A.T. & Co.
Model: 1857
Estimated Production Date: July 1867
Run Quantity: 190
Grade/Model Run: 783 of 1154
Grade/Model Total Production: 62,258
Size: 18s
Jewels: 15j
Movement Configuration: Adaptable
Movement Finish: Gilt
Movement Setting: Key
Plate: Full Plate
Balance Type: Solid
Balance Material: Gold
Adjusted: No
Railroad Grade: No
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
Case: Various
Run ID: 3771.G945.18S3523.181857M3320.O3767.K3770.15J855
Database Version: v52.246
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
171.75
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
156.29
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.171%
Registry Population: 4 (2.11%)
$ Estimated Value (12 Month Change): -3.32% Analyzing 378 Sales
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