Pocket Watch Database

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

Lancaster Watch Co.

Grade: Keystone

Manufacturer: Lancaster Watch Co.
Manufacturer Location: Lancaster, Pennsylvania
Movement Serial Number: 25736
Grade: Keystone
Variation: No. 4
Model: 2
Estimated Production Year: 1881
Run Quantity: 1,400
Grade/Model Run: 3 of 3
Grade/Model Total Production: 3,900
Variant Est. Production: 1,400 (18S-M2-15J-HGP)
Size: 18s
Jewels: 15j
Movement Configuration: Hunting
Movement Finish: Gilt
Movement Setting: Pendant
Plate: 3/4 Plate
Balance Type: Expansion
Train: Quick
Regulator: Mixed
Adjusted: Yes
Adjusted to Temperature: Yes
Adjusted to Isochronism: Yes
Movement Markings: Keystone
Lancaster, Pa.
Patent Safety Pinion
Adjusted
Case: Various
Run ID: 28.G6.18S18.182M9.H12.P4.15J9
Database Version: v52.245
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
11.74
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
86.64
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
1.715%
Registry Population: 2 (0.14%)

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Lancaster Watch Co. Grade Keystone Pocket Watch