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: 330084 Question Mark
Grade: Keystone Watch Co. Question Mark
Variation: 10J-GD Question Mark
Model: 3 Question Mark
Estimated Production Year: 1887 Question Mark
Run Quantity: 2,500 Question Mark
Grade/Model Run: 16 of 41 Question Mark
Grade/Model Total Production: 45,450 Question Mark
Size: 18s Question Mark
Jewels: 10j Question Mark
Movement Configuration: Hunting Question Mark
Movement Finish: Gilt Damaskeened Question Mark
Movement Setting: Lever Question Mark
Plate: 3/4 Plate Question Mark
Regulator: Bitner Question Mark
Adjusted: No Question Mark
Railroad Grade: No Question Mark
Movement Markings: Keystone Watch Co.
Pat. Dust Proof
Patent Pinion
Pat. S.W.
Pat. Reg.
Case: Various Question Mark
Run ID: 132.G28.18S86.183M26.H75.L71.10J27 Question Mark
Database Version: v52.528 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
19.978% Question Mark
Registry Population:
Scoped for This Run Only
11 (0.44%) Question Mark
Research Note: #329077: Verified with "Patented" Dial. #331310: Gilt Damaskeened. #330084: Gilt Damaskeened, Verified as Series 4, Verified with unjeweled bottom plate. #330028: Odd oval-like profile cut. Appears to have originally been provisioned for a Dust-Proof window, but that part is missing. Movement *not* marked "Pat. Dust Proof." Though, it is typically marked in the area where the plate has been removed. #330276: Verified as Gilt Damaskeened with Gilt Spade Hands. #330973: Celluloid Dial, Blue Spade 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.


nicnic Supporter 406 · August 19, 2024

Serial Number 331359 was reported as accurate.

weepinglion 48 · September 7, 2022

Serial Number 329570 was reported as accurate.

Lancaster Watch Co. Grade Keystone Watch Co. Pocket Watch