Pocket Watch Database

From the American Horology Archive:
Hamilton Grade 920 Pocket Watch

Hamilton Watch Co.

Grade: 920

Manufacturer: Hamilton
Manufacturer Location: Lancaster, Pennsylvania
Movement Serial Number: 1880130
Grade: 920
Model: 1
Estimated Production Year: 1920
Run Quantity: 300
Grade/Model Run: 8 of 15
Grade/Model Total Production: 14,600
Size: 12s
Jewels: 23j
Jewel Material: Ruby or Ruby & Sapphire
Jewel Setting: Gold Settings (Screw-Set)
Movement Configuration: Openface
Movement Finish: Nickel
Movement Setting: Pendant
Plate: Bridge Plate
Balance Type: Compensation
Train Material: Gold
Center Wheel Material: Gold
Regulator: Reed
Hairspring: Breguet
Pallet Jewel Material: Sapphire
Adjusted: Yes
Adjusted to Position: Yes
Adjusted # of Positions: 5
Adjusted to Temperature: Yes
Adjusted to Isochronism: Yes
Railroad Grade: No
Dial Feet Locations: 10.5, 38.5, 56.0
Data Research: 1953 Hamilton Serial List
Case: Various
Run ID: 2115.920G8.12S59.121M59.O1518.P605.23J47
Database Version: v52.245
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
43.95
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
19.28
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.137%
Registry Population: 6 (2.00%)
$ Estimated Value (12 Month Change): -8.87% Analyzing 71 Sales
Research Note:

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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.


okiejohn 379 · December 10, 2018

Serial Number 1880130 was reported as accurate.

Anonymous · November 22, 2018

Serial Number 1880128 was reported as accurate.

Anonymous · September 29, 2014

Serial Number 1880036 was reported as accurate.

moenboy 2 · September 5, 2014

Serial Number 1880036 was reported as accurate.

timerestored 278 · August 25, 2014

Serial Number 1880036 was reported as accurate.

Hamilton Grade 920 Pocket Watch