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: 350050 Question Mark
Grade: Keystone Watch Co. Question Mark
Variation: 15J-N Question Mark
Model: 3 Question Mark
Estimated Production Year: 1889 Question Mark
Run Quantity: 1,500 Question Mark
Grade/Model Run: 28 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.
Safety Pinion
Pat. S.W.
Adjusted
Pat. Reg.
Case: Various Question Mark
Run ID: 149.G42.18S100.183M38.H88.L84.15J29 Question Mark
Database Version: v52.462 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
7 (0.47%) Question Mark
Research Note: #350250: Celluloid Dial, Filled Gilt Keystone Hands. #350345: Celluloid Dial, Gilt Keystone Hands. #350152: Filled Gilt Keystone Hands, Enamel Dial. #350921: Patented Dial, Filled Gilt Keystone Hands

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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 12, 2022

Serial Number 350988 was reported as accurate.

Cpmeadors Supporter 36 · December 20, 2021

Serial Number 350152 was reported as accurate.

Lancaster Watch Co. Grade Keystone Watch Co. Pocket Watch