Pocket Watch Database

From the American Horology Archive:
Waltham Grade No. 640 Pocket Watch

American Waltham Watch Co.

Grade: No. 640

Manufacturer: Waltham
Manufacturer Location: Waltham, Massachusetts
Movement Serial Number: 7596594
Grade: No. 640
Model: 1888
Estimated Production Year: 1896
Run Quantity: 500
Grade/Model Run: 6 of 6
Grade/Model Total Production: 3,800
Size: 16s
Jewels: 17j
Movement Configuration: Openface
Movement Setting: Pendant
Plate: 3/4 Plate
Regulator: Patent
Hairspring: Breguet
Adjusted: Yes
Case: Various
Run ID: 15558.G6.16S816.161888M491.O10199.P2076.17J382
Data Research: 1954 Waltham "Gray Book" List
NAWCC Waltham Serial Digest
Database Version: v52.289
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
6.02
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
5.48
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.006%
Registry Population: 6 (1.20%)

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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 · March 1, 2014

Serial Number 7596517 was reported as accurate.

Waltham Grade No. 640 Pocket Watch