Pocket Watch Database


From the American Horology Archive:

American Waltham Watch Co.

Grade: Ruby

Manufacturer: Waltham Question Mark
Manufacturer Location: Waltham, Massachusetts Question Mark
Movement Serial Number: 18112990 Question Mark
Grade: Ruby Question Mark
Model: Opera Question Mark
Estimated Production Year: 1911 Question Mark
Run Quantity: 1,000 Question Mark
Grade/Model Run: 1 of 2 Question Mark
Grade/Model Total Production: 2,000 Question Mark
Size: 6/0s Question Mark
Jewels: 17j Question Mark
Movement Configuration: Openface Question Mark
Movement Setting: Pendant Question Mark
Hairspring: Breguet Question Mark
Adjusted: Yes Question Mark
Railroad Grade: No Question Mark
Case: Various Question Mark
Run ID: 21758.G34.S97.M2.O13519.P7008.17J2061 Question Mark
Data Research: 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
6.02 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
5.48 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.006% Question Mark
Registry Population:
Scoped for This Run Only
7 (0.70%) 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.


Fifty50 Supporter 350 · May 4, 2021

Serial Number 18112620 was reported as accurate.

Anonymous · November 20, 2020

Serial Number 18113319 was reported as accurate.

Anonymous · October 30, 2019

Serial Number 18112955 was reported as accurate.

Anonymous · August 6, 2016

Serial Number 18112701 was reported as accurate.

Changes since this report was submitted:
Size changed from Jewel Series to 6/0