Pocket Watch Database


From the American Horology Archive:
Waltham Grade Vanguard Pocket Watch

American Waltham Watch Co.

Grade: Vanguard

Manufacturer: Waltham Question Mark
Manufacturer Location: Waltham, Massachusetts Question Mark
Movement Serial Number: 18150170 Question Mark
Grade: Vanguard Question Mark
Model: 1908 Question Mark
Estimated Production Year: 1911 Question Mark
Run Quantity: 500 Question Mark
Grade/Model Run: 33 of 123 Question Mark
Grade/Model Total Production: 182,450 Question Mark
Size: 16s Question Mark
Jewels: 23j Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Nickel Question Mark
Movement Setting: Lever Question Mark
Plate: Bridge Plate Question Mark
Regulator: Ohlson 1908 Question Mark
Hairspring: Breguet Question Mark
Adjusted: Yes Question Mark
Adjusted to Position: Yes Question Mark
Case: Various Question Mark
Run ID: 21808.G307.16S2781.161908M356.O13553.L5314.23J261 Question Mark
Data Research: 1954 Waltham "Gray Book" List
NAWCC Waltham Serial Digest
Question Mark
Database Version: v52.457 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
531.55 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
483.71 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.528% Question Mark
Registry Population:
Scoped for This Run Only
11 (2.20%) Question Mark
$ Estimated Value (12 Month Change): -3.54% Analyzing 1,752 Sales Question Mark
Research Note: Waltham Serial List Does Not Indicate Lever-Set

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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 · May 30, 2023

Serial Number 18150325 was reported as accurate.

Anonymous · April 10, 2018

Serial Number 18150259 was reported as accurate.

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

XenoR7912 36 · August 27, 2017

Serial Number 18150444 was reported as inaccurate.

Note: Lever set
Changes since this report was submitted:
Movement Setting changed from Pendant to Lever
Plate changed from 3/4 to Bridge

Anonymous · August 27, 2016

Serial Number 18150409 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Pendant to Lever
Plate changed from 3/4 to Bridge

Anonymous · February 2, 2014

Serial Number 18150363 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Pendant to Lever
Plate changed from 3/4 to Bridge
Waltham Grade Vanguard Pocket Watch