Pocket Watch Database

From the American Horology Archive:
New York Watch Co. Grade Chester Woolworth Pocket Watch

New York Watch Co.

Grade: Chester Woolworth

Private Label(s) in Run:

Ormsby Bros. - Syracuse, NY

What is a Private Label?
Manufacturer: New York Watch Co. Question Mark
Manufacturer Location: Springfield, Massachusetts Question Mark
Movement Serial Number: 15490 Question Mark
Grade: Chester Woolworth Question Mark
Model: 1870 Question Mark
Estimated Production Year: 1871 Question Mark
Run Quantity: 100 Question Mark
Grade/Model Run: 8 of 36 Question Mark
Grade/Model Total Production: 6,020 Question Mark
Size: 18s Question Mark
Jewels: 15j Question Mark
Jewel Setting: Screw-Set Question Mark
Movement Configuration: Adaptable Question Mark
Movement Finish: Gilt Question Mark
Movement Setting: Key Question Mark
Plate: Full Plate Question Mark
Balance Type: Expansion Question Mark
Regulator: Plain Question Mark
Hairspring: Flat Question Mark
Standard Dial Type: Single-Sunk Question Mark
Adjusted: ? Question Mark
Movement Markings: Chester Woolworth
Springfield, Mass.
Case: Various Question Mark
Run ID: 110.G8.18S63.181870M37.E92.K94.15J37 Question Mark
Database Version: v52.640 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
18.24 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
432.37 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
12.274% Question Mark
Registry Population:
Scoped for This Run Only
3 (3.00%) 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.


pentaxman Supporter 6 · April 6, 2025

Serial Number 15491 was reported as inaccurate.

Note: The movement has had some "aftermarket" work to
change this into a stem wind sidewinder.
The Key wind has been capped off.
New York Watch Co. Grade Chester Woolworth Pocket Watch