Pocket Watch Database

From the American Horology Archive:
Waltham Grade Royal Pocket Watch

American Waltham Watch Co.

Grade: Royal

Manufacturer: Waltham
Manufacturer Location: Waltham, Massachusetts
Movement Serial Number: 20157991
Grade: Royal
Model: 1908
Estimated Production Year: 1915
Run Quantity: 500
Grade/Model Run: 15 of 35
Grade/Model Total Production: 23,800
Size: 16s
Jewels: 17j
Jewel Setting: Gold Settings (Screw-Set)
Movement Configuration: Openface
Movement Setting: Pendant
Plate: Bridge Plate
Balance Type: Compensation
Regulator: Patent
Hairspring: Breguet
Adjusted: Yes
Railroad Grade: No
Data Research: 1954 Waltham "Gray Book" List
NAWCC Waltham Serial Digest
Case: Various
Run ID: 23009.G712.16S3222.161908M791.O14308.P8117.17J2351
Database Version: v52.219
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
46.41
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
42.46
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.046%
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 · January 2, 2022

Serial Number 20157507 was reported as accurate.

Anonymous · January 26, 2020

Serial Number 20157530 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Bridge

Anonymous · December 30, 2019

Serial Number 20157530 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Bridge

Anonymous · February 8, 2013

Serial Number 20157835 was reported as inaccurate.

Note: adjusted to 3 positions
Changes since this report was submitted:
Plate changed from 3/4 to Bridge
Waltham Grade Royal Pocket Watch