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Movement Specs Production Pop. Registry 1 Value For Sale Save to My Collection Print Page
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ANTIQUE 18s KEYSTONE WATCH CO POCKET WATCH PARTS
$9.99
Check Price Source: eBay.com
Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/lancaster-watch-co/340959/movement
Access Date: March 16, 2025
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: 340959 Question Mark
Grade: Keystone Watch Co. Question Mark
Variation: 10J-N Question Mark
Model: 3 Question Mark
Estimated Production Year: 1888 Question Mark
Run Quantity: 1,000 Question Mark
Grade/Model Run: 22 of 41 Question Mark
Grade/Model Total Production: 45,450 Question Mark
Variant Est. Production: 9,800 (18S-M3-10J-HNL) Question Mark
Size: 18s Question Mark
Jewels: 10j 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: 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: 141.G35.18S93.183M32.H82.L78.10J33 Question Mark
Database Version: v52.623 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		1 (0.10%) Question Mark
Value Guide
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Production Metrics Tree: Grade Keystone Watch Co.

Target Profile: 18S-M3-10J-HNL-U-10J-N

Lancaster Watch Co. Grade Keystone Watch Co. (All Variations): 97,960 ETP
18S: 96,960 98.98%
18s, Grade Keystone Watch Co.		 Other: 1,000
Other Sizes or Unclassified
18S-M3: 45,450 46.40%
18s, Grade Keystone Watch Co., Model 3		 Other: 51,510
Other Models or Unclassified
18S-M3-10J: 22,700 23.17%
18s, Grade Keystone Watch Co., Model 3, 10 Jewels		 Other: 22,750
Other Jewels or Unclassified
18S-M3-10J-HNL: 9,800 10.00%
18s, Grade Keystone Watch Co., Model 3, 10 Jewels, Hunting/Lever/Nickel 		Other: 12,900
Other Configs or Unclassified
18S-M3-10J-HNL-U: 9,800 10.00%
18S-M3-10J-HNL-U-10J: 9,800 10.00%

Population Registry for This Run

Image Serial Number Run Position Primary Identification Method Discovery Date
There is 1 watch in the population registry for this run with 1 image.
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Lancaster Watch Co. Grade Keystone Watch Co. Pocket Watch