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: 325498
Grade: 961
Model: 4
Class: 1
Estimated Production Year: 1907
Run Quantity: 900
Grade/Model Run: 6 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: Yes
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: 726.961G6.16S278.164M13.H336.L447.21J152
Database Version: v52.219
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
7.21
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: 22 (2.44%)
Research Note: According to the Halligan records: "To meet the demand for 23-jewel, hunting watches a 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. #325411 Verified as 951L [HA] #325445 Verified as 951L [HPW] #325446 Verified as 951L [NAWCC]. #325933: Verified as 961 (21 Jewels) [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.


SleepyDog 3 · May 19, 2022

Serial Number 325866 was reported as accurate.

Anonymous · May 10, 2022

Serial Number 325577 was reported as accurate.

Anonymous · September 10, 2020

Serial Number 325251 was reported as accurate.

Anonymous · December 19, 2019

Serial Number 325951 was reported as accurate.

Anonymous · February 7, 2019

Serial Number 325933 was reported as accurate.

sjs1233 1 · January 25, 2019

Serial Number 325177 was reported as accurate.

Anonymous · December 22, 2018

Serial Number 325585 was reported as accurate.

Anonymous · September 23, 2018

Serial Number 325251 was reported as accurate.

Anonymous · September 15, 2018

Serial Number 325914 was reported as accurate.

Anonymous · September 2, 2018

Serial Number 325358 was reported as accurate.

Anonymous · July 17, 2018

Serial Number 325914 was reported as accurate.

Anonymous · July 12, 2018

Serial Number 325251 was reported as accurate.

Anonymous · July 2, 2018

Serial Number 325251 was reported as accurate.

Anonymous · June 17, 2018

Serial Number 325251 was reported as accurate.

Mobilaero Top Contributor Supporter 291 · May 28, 2018

Serial Number 325896 was reported as accurate.

Anonymous · January 28, 2018

Serial Number 325446 was reported as accurate.

Changes since this report was submitted:
Grade changed from 951 to 961
Jewels changed from 23j to 21j

cougwatch Supporter 125 · June 11, 2017

Serial Number 325498 was reported as inaccurate.

Note: I would say this is a 961 - no barrel jewel not
marked as either 961 or 951
Changes since this report was submitted:
Grade changed from 951 to 961
Jewels changed from 23j to 21j

Anonymous · October 21, 2016

Serial Number 325252 was reported as inaccurate.

Note: This is a 21 jewel 961.
Changes since this report was submitted:
Grade changed from 951 to 961
Jewels changed from 23j to 21j

barberr 4 · April 21, 2016

Serial Number 325362 was reported as inaccurate.

Note: my Hamilton hunter has the serial #325362 is
marked 961
Changes since this report was submitted:
Grade changed from 951 to 961
Jewels changed from 23j to 21j

mccuskerjim 17 · March 17, 2016

Serial Number 325244 was reported as accurate.

Changes since this report was submitted:
Grade changed from 951 to 961
Jewels changed from 23j to 21j

Anonymous · December 13, 2015

Serial Number 325358 was reported as accurate.

Changes since this report was submitted:
Grade changed from 951 to 961
Jewels changed from 23j to 21j

Anonymous · September 14, 2015

Serial Number 325725 was reported as accurate.

Changes since this report was submitted:
Grade changed from 951 to 961
Jewels changed from 23j to 21j

Anonymous · September 14, 2015

Serial Number 325604 was reported as accurate.

Changes since this report was submitted:
Grade changed from 951 to 961
Jewels changed from 23j to 21j

GusHertz 9 · September 9, 2015

Serial Number 325664 was reported as inaccurate.

Note: Serial #325664 is marked as 961, not 951. As well,
it has 21 jewels rather than 23.
Changes since this report was submitted:
Grade changed from 951 to 961
Jewels changed from 23j to 21j

Anonymous · July 13, 2015

Serial Number 325605 was reported as accurate.

Changes since this report was submitted:
Grade changed from 951 to 961
Jewels changed from 23j to 21j

Anonymous · July 1, 2015

Serial Number 325465 was reported as accurate.

Changes since this report was submitted:
Grade changed from 951 to 961
Jewels changed from 23j to 21j

Anonymous · June 22, 2015

Serial Number 325445 was reported as accurate.

Changes since this report was submitted:
Grade changed from 951 to 961
Jewels changed from 23j to 21j

Anonymous · June 22, 2015

Serial Number 325385 was reported as accurate.

Changes since this report was submitted:
Grade changed from 951 to 961
Jewels changed from 23j to 21j

Anonymous · June 22, 2015

Serial Number 325457 was reported as accurate.

Changes since this report was submitted:
Grade changed from 951 to 961
Jewels changed from 23j to 21j

Anonymous · March 30, 2015

Serial Number 325687 was reported as accurate.

Changes since this report was submitted:
Grade changed from 951 to 961
Jewels changed from 23j to 21j

Anonymous · September 14, 2014

Serial Number 325173 was reported as accurate.

Changes since this report was submitted:
Grade changed from 951 to 961
Jewels changed from 23j to 21j

Anonymous · September 14, 2014

Serial Number 325173 was reported as accurate.

Changes since this report was submitted:
Grade changed from 951 to 961
Jewels changed from 23j to 21j

Anonymous · September 12, 2014

Serial Number 325263 was reported as accurate.

Changes since this report was submitted:
Grade changed from 951 to 961
Jewels changed from 23j to 21j

Anonymous · August 25, 2014

Serial Number 325411 was reported as inaccurate.

Note: 325411 is mark 951 that is a grade 951.

Anonymous · July 2, 2014

Serial Number 325446 was reported as inaccurate.

Note: This movement is a 951 (yes, I know they were
finished out of a run of 961s, but still ...).

Anonymous · April 19, 2014

Serial Number 325563 was reported as inaccurate.

No further details were submitted with the report.

Mobilaero Top Contributor Supporter 291 · April 7, 2014

Serial Number 325896 was reported as accurate.

watchitdude 39 · February 18, 2014

Serial Number 325212 was reported as inaccurate.

Note: EST. PROD. YEAR: 1905
MOVEMENT SETTING: LEVER
RR GRADE: NO

Anonymous · December 17, 2013

Serial Number 325940 was reported as accurate.

Anonymous · April 28, 2013

Serial Number 325161 was reported as inaccurate.

Note: Bridge type plate
Changes since this report was submitted:
Plate changed from Unknown to Bridge

Anonymous · May 30, 2012

Serial Number 325328 was reported as accurate.

Hamilton Grade 961 Pocket Watch