Pocket Watch Database

From the American Horology Archive:
Hamilton Grade 961 Pocket Watch

Hamilton Watch Co.

Grade: 961

Some Finished as Grade 951

Manufacturer: Hamilton
Manufacturer Location: Lancaster, Pennsylvania
Movement Serial Number: 750071
Grade: 961
Model: 4
Class: 1
Estimated Production Year: 1909
Run Quantity: 100
Grade/Model Run: 7 of 8
Grade/Model Total Production: 2,410
Size: 16s
Jewels: 21j
Jewel Material: Ruby & Sapphire
Jewel Setting: Gold Settings (Screw-Set)
Movement Configuration: Hunting
Movement Finish: Nickel
Movement Setting: Lever
Plate: Bridge Plate
Bridge Type: Center
Train Material: Gold
Center Wheel Material: Gold
Regulator: Reed
Hairspring: Breguet
Pallet Jewel Material: Sapphire
Standard Dial Type: Double-Sunk
Adjusted: Yes
Adjusted to Position: Yes
Adjusted # of Positions: 5
Adjusted to Temperature: Yes
Adjusted to Isochronism: Yes
Railroad Grade: No
Dial Feet Locations: 7.6, 21.8, 38.0, 50.5
Hamilton 16s Dial Feet Research
Data Research: 1953 Hamilton Serial List
Case: Various
Run ID: 1177.961G7.16S504.164M14.H465.L786.21J315
Database Version: v52.270
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
7.25
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
3.18
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.023%
Registry Population: 1 (1.00%)
Research Note: According to the Halligan records: "To meet the demand for 23-jewel, hunting watches as few #961 - Pendant and Lever Set movements were changed to 23-jewel watches. No orders for this model were ever given to the Plate Department. Finished watches were taken out of stock and returned to the Factory for changing. They were re-modeled to conform with the #950." The subsequent production charts indicate 97 were made as lever-set and 44 were made as pendant-set. #750080 Verified as 951L [NAWCC] #750093 Verified as 951L [JH]

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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.


Anonymous · May 27, 2017

Serial Number 750019 was reported as accurate.

Changes since this report was submitted:
Railroad Grade changed from ? to No

Firebirdjeff 41 · September 26, 2014

Serial Number 750071 was reported as accurate.

Changes since this report was submitted:
Railroad Grade changed from ? to No

Anonymous · August 14, 2013

Serial Number 750078 was reported as inaccurate.

No further details were submitted with the report.
Changes since this report was submitted:
Railroad Grade changed from ? to No
Hamilton Grade 961 Pocket Watch