Pocket Watch Database

From the American Horology Archive:
Hamilton Grade 940 Pocket Watch
Hamilton Grade 940 Pocket Watch

Hamilton Watch Co.

Grade: 940

Manufacturer: Hamilton
Manufacturer Location: Lancaster, Pennsylvania
Movement Serial Number: 597333
Grade: 940
Model: 1
Estimated Production Year: 1908
Run Quantity: 7,000
Grade/Model Run: 87 of 121
Grade/Model Total Production: 210,596
Size: 18s
Jewels: 21j
Jewel Material: Ruby
Jewel Setting: Screw-Set
Movement Configuration: Openface
Movement Finish: Nickel
Finish Pattern: Damaskeened
Movement Inlay Color: Gilt
Movement Setting: Lever
Plate: Full Plate
Double Roller: Yes
Barrel: Motor
Regulator: Goldthwait
Hairspring: Breguet
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
Railroad Grade Classification: Class A
Dial Feet Locations: 2.6, 18.0, 38.2
U.S. Patents: 832672, 427072
Data Research: 1953 Hamilton Serial List
Case: Various
Run ID: 1047.940G87.18S596.181M374.O624.L673.21J275
Database Version: v52.219
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
630.54
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
278.20
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
1.976%
Registry Population: 87 (1.24%)
$ Estimated Value (12 Month Change): 2.06% Analyzing 2,336 Sales
Research Note: Early movements in this run may not feature the motor barrel. #594076 has been verified as having a going barrel. Various observations within this run has indicated later movements feature the motor barrel despite the barrel bridge not being marked as such., Gilt Lettering

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Does this information describe your movement accurately?

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.


cjbrem Supporter 493 · March 24, 2024

Serial Number 598883 was reported as accurate.

Anonymous · February 12, 2024

Serial Number 594223 was reported as accurate.

Rcardkidz 3398 · February 19, 2023

Serial Number 600615 was reported as accurate.

Anonymous · August 12, 2022

Serial Number 596100 was reported as accurate.

Anonymous · April 23, 2022

Serial Number 594279 was reported as accurate.

Anonymous · April 17, 2022

Serial Number 596959 was reported as inaccurate.

Note: This serial has a going barrel, not a motor
barrel.
Curator Response: Thanks for the confirmation!

Anonymous · March 14, 2022

Serial Number 600137 was reported as accurate.

PHIL1199 Supporter 940 · February 19, 2022

Serial Number 594312 was reported as accurate.

Anonymous · January 4, 2022

Serial Number 595844 was reported as accurate.

Anonymous · December 28, 2021

Serial Number 595844 was reported as accurate.

Anonymous · November 29, 2021

Serial Number 598112 was reported as accurate.

Anonymous · October 21, 2021

Serial Number 598112 was reported as accurate.

Anonymous · September 16, 2021

Serial Number 594803 was reported as accurate.

Anonymous · May 16, 2021

Serial Number 595786 was reported as accurate.

Anonymous · February 11, 2021

Serial Number 596790 was reported as inaccurate.

Note: motor barrel
Curator Response: Thanks for the report. The database has been updated accordingly.

Anonymous · January 29, 2021

Serial Number 597824 was reported as accurate.

Anonymous · January 5, 2021

Serial Number 596180 was reported as accurate.

Anonymous · November 26, 2020

Serial Number 594249 was reported as accurate.

Anonymous · September 20, 2020

Serial Number 600882 was reported as accurate.

dayvault 9 · July 2, 2020

Serial Number 596572 was reported as accurate.

Anonymous · June 26, 2020

Serial Number 600688 was reported as accurate.

Anonymous · June 8, 2020

Serial Number 600688 was reported as accurate.

Anonymous · June 7, 2020

Serial Number 600204 was reported as accurate.

Anonymous · May 23, 2020

Serial Number 595342 was reported as accurate.

Anonymous · May 15, 2020

Serial Number 594797 was reported as accurate.

Anonymous · February 4, 2020

Serial Number 594640 was reported as accurate.

Anonymous · January 22, 2020

Serial Number 599402 was reported as accurate.

gregandjulie 1 · January 12, 2020

Serial Number 599109 was reported as accurate.

Anonymous · December 5, 2019

Serial Number 596802 was reported as accurate.

Anonymous · November 22, 2019

Serial Number 596888 was reported as accurate.

Anonymous · November 14, 2019

Serial Number 600639 was reported as accurate.

Anonymous · August 24, 2019

Serial Number 596764 was reported as accurate.

Anonymous · March 9, 2019

Serial Number 597333 was reported as accurate.

Anonymous · February 14, 2019

Serial Number 600347 was reported as accurate.

Anonymous · February 8, 2019

Serial Number 597690 was reported as accurate.

Anonymous · January 28, 2019

Serial Number 600555 was reported as accurate.

Anonymous · December 23, 2018

Serial Number 594416 was reported as accurate.

Anonymous · November 21, 2018

Serial Number 594631 was reported as accurate.

Anonymous · August 5, 2018

Serial Number 598410 was reported as accurate.

Anonymous · July 10, 2018

Serial Number 598410 was reported as accurate.

Anonymous · June 25, 2018

Serial Number 597059 was reported as accurate.

Anonymous · May 8, 2018

Serial Number 599621 was reported as accurate.

Anonymous · April 18, 2018

Serial Number 597532 was reported as accurate.

Anonymous · April 15, 2018

Serial Number 599961 was reported as inaccurate.

Note: 599961 model 940.
The description describes the jewels as ruby.. I
note that on my example, one of the visible jewels
is clear. Could it be Safire or Diamond? Possible
a retrofit?
Curator Response: The Grade 940 plate jewels should be ruby. If one of the plate jewels is clear, it is a replacement.

Anonymous · April 12, 2018

Serial Number 598237 was reported as accurate.

Wayne56 2 · March 10, 2018

Serial Number 600551 was reported as accurate.

Anonymous · January 29, 2018

Serial Number 596481 was reported as accurate.

Anonymous · January 25, 2018

Serial Number 597664 was reported as accurate.

Anonymous · December 13, 2017

Serial Number 599910 was reported as accurate.

Anonymous · December 3, 2017

Serial Number 595276 was reported as inaccurate.

No further details were submitted with the report.
Hamilton Grade 940 Pocket Watch
Hamilton Grade 940 Pocket Watch