Pocket Watch Database

From the American Horology Archive:
Lancaster Watch Co. Grade Keystone Watch Co. Pocket Watch

Lancaster Watch Co.

Grade: Keystone Watch Co.

Manufacturer: Lancaster Watch Co. Question Mark
Manufacturer Location: Lancaster, Pennsylvania Question Mark
Movement Serial Number: 316010 Question Mark
Grade: Keystone Watch Co. Question Mark
Variation: 15J-N Question Mark
Model: 3 Question Mark
Estimated Production Year: 1885 Question Mark
Run Quantity: 50 Question Mark
Grade/Model Run: 8 of 41 Question Mark
Grade/Model Total Production: 45,450 Question Mark
Variant Est. Production: 8,550 (18S-M3-15J-HNL-A) Question Mark
Size: 18s Question Mark
Jewels: 15j Question Mark
Movement Configuration: Hunting Question Mark
Movement Finish: Nickel Question Mark
Movement Setting: Lever Question Mark
Plate: 3/4 Plate Question Mark
Regulator: Bitner Question Mark
Adjusted: Yes Question Mark
Movement Markings: Keystone Watch Co.
Pat. Dust Proof
Patent Pinion
Pat. S.W.
Adjusted
Pat. Reg.
Case: Various Question Mark
Run ID: 120.G19.18S77.183M18.H66.L62.15J25 Question Mark
Database Version: v52.450 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
136.84 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
1,012.03 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
19.987% Question Mark
Registry Population:
Scoped for This Run Only
1 (2.00%) 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.


cmdraven 4083 · November 17, 2021

Serial Number 316010 was reported as accurate.

Changes since this report was submitted:
Jewels changed from 20j to 15j
Lancaster Watch Co. Grade Keystone Watch Co. Pocket Watch