Lancaster Watch Co. Pocket Watch: Serial Number 330084 (Grade Keystone Watch Co.)

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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/lancaster-watch-co/330084/movement

Access Date: November 24, 2024

From the American Horology Archive:

Lancaster Watch Co.

Grade: Keystone Watch Co.

Manufacturer:	Lancaster Watch Co.
Manufacturer Location:	Lancaster, Pennsylvania
Movement Serial Number:	330084
Grade:	Keystone Watch Co.
Variation:	10J-GD
Model:	3
Estimated Production Year:	1887
Run Quantity:	2,500
Grade/Model Run:	16 of 41
Grade/Model Total Production:	45,450
Variant Est. Production:	7,400 (18S-M3-10J-HDL)
Size:	18s
Jewels:	10j
Movement Configuration:	Hunting
Movement Finish:	Gilt Damaskeened
Movement Setting:	Lever
Plate:	3/4 Plate
Regulator:	Bitner
Adjusted:	No
Railroad Grade:	No
Movement Markings:	Keystone Watch Co. Pat. Dust Proof Patent Pinion Pat. S.W. Pat. Reg.
Case:	Various
Run ID:	132.G28.18S86.183M26.H75.L71.10J27
Database Version:	v52.462
Advanced Metrics
PWDB Absolute Rarity Index: Scoped for Grade/Size/Model/Configuration	136.84
PWDB Relative Rarity Index: Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration	1,012.03
Share of Production: Share within Manufacturer - Scoped for Grade/Size/Model/Configuration	19.987%
Registry Population: Scoped for This Run Only	11 (0.44%)
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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Production Metrics Tree: Grade Keystone Watch Co.

Target Profile: 18S-M3-10J-HDL-U-10J-GD

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-HDL: 7,400 7.55% 18s, Grade Keystone Watch Co., Model 3, 10 Jewels, Hunting/Lever/Gilt Damaskeened	Other: 15,300 Other Configs or Unclassified
18S-M3-10J-HDL-U: 7,400 7.55%
18S-M3-10J-HDL-U-10J: 7,400 7.55%

Population Registry for This Run

	Image	Serial Number	Run Position	Primary Identification Method	Discovery Date
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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.