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: 686311
Grade: 940
Model: 1
Estimated Production Year: 1911
Run Quantity: 2,000
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
Registry Population: 11 (0.55%)
Database Version: v49.712

Population Registry for This Run

Image Serial Number Run Position Primary Identification Method Discovery Date
1 685071 #71 Marketplace May 24, 2016
2 685300 #300 Marketplace August 02, 2014
3 685301 #301 Marketplace January 30, 2019
4
Image Credit: philipmclain
685386 #386 Collection December 07, 2020
5 685500 #500 Marketplace July 20, 2018
6
Image Credit: sergioag
685514 #514 Collection December 16, 2018
7 685953 #953 Collection January 19, 2022
8 686072 #1072 Collection September 20, 2019
9
Image Credit: Yellowtail420
686303 #1303 Collection October 16, 2016
10
Image Credit: winterwolf
686311 #1311 Collection July 04, 2019
11 686775 #1775 Collection July 11, 2015
Standard Deviation of Known Examples: 541.00 (Expected: 577.49, Δ36.49/1.82%)

Help Us Help Others By Improving the Database:

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.


Anonymous · January 30, 2022

Serial Number 685653 was reported as accurate.

Anonymous · December 29, 2021

Serial Number 685658 was reported as accurate.

Snapper Supporter 98 · November 15, 2021

Serial Number 686758 was reported as accurate.

Anonymous · November 14, 2021

Serial Number 685658 was reported as accurate.

Anonymous · October 29, 2021

Serial Number 685928 was reported as accurate.

Anonymous · October 23, 2021

Serial Number 685346 was reported as accurate.

sammyellis 1 · March 21, 2021

Serial Number 686319 was reported as inaccurate.

Note: My research and multiple other sources reflect a
1908 manufacture date, not 1911 - 1911 had a
serial number run in the 800,000s
Curator Response: Factory ledgers indicate your watch was finished within the last few days in 1910 and sold January 3, 1911. The source for your proposed 1908 date is incorrect.

Anonymous · December 9, 2020

Serial Number 686315 was reported as accurate.

Anonymous · November 8, 2020

Serial Number 686438 was reported as accurate.

Anonymous · July 6, 2020

Serial Number 685264 was reported as accurate.

Anonymous · January 26, 2020

Serial Number 685008 was reported as accurate.

Anonymous · August 20, 2019

Serial Number 685264 was reported as accurate.

Anonymous · August 11, 2019

Serial Number 686715 was reported as accurate.

Anonymous · April 2, 2019

Serial Number 685264 was reported as accurate.

Anonymous · January 10, 2019

Serial Number 686026 was reported as accurate.

sergioag 7 · December 24, 2018

Serial Number 685514 was reported as accurate.

bitucker 20 · September 19, 2018

Serial Number 685514 was reported as accurate.

Anonymous · August 24, 2017

Serial Number 686945 was reported as accurate.

Anonymous · August 4, 2017

Serial Number 686541 was reported as accurate.

Anonymous · June 14, 2017

Serial Number 685008 was reported as accurate.

Anonymous · April 19, 2017

Serial Number 685008 was reported as accurate.

Anonymous · January 10, 2017

Serial Number 685280 was reported as accurate.

Yellowtail420 Supporter 96 · October 16, 2016

Serial Number 686303 was reported as accurate.

von1943 361 · September 23, 2016

Serial Number 685829 was reported as accurate.

von1943 361 · September 23, 2016

Serial Number 685829 was reported as accurate.

quadcitycoin Supporter 73 · July 27, 2016

Serial Number 686438 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes

Anonymous · February 26, 2016

Serial Number 685399 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes

rock862 242 · October 25, 2015

Serial Number 686798 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes

Anonymous · September 11, 2015

Serial Number 686334 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes

Anonymous · June 29, 2015

Serial Number 686775 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes

Anonymous · September 26, 2014

Serial Number 686803 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes

Anonymous · September 12, 2014

Serial Number 0685134 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes

cec13445 2 · February 22, 2014

Serial Number 686236 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes

Anonymous · July 31, 2013

Serial Number 686032 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes

Anonymous · April 21, 2013

Serial Number 686538 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes

Anonymous · October 21, 2012

Serial Number 686032 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes

Anonymous · September 25, 2012

Serial Number 686668 was reported as inaccurate.

Note: This is a full plate and everything else is
correct.
Changes since this report was submitted:
Double Roller changed from No to Yes
Plate changed from Unknown to Full

Anonymous · May 27, 2012

Serial Number 686544 was reported as inaccurate.

Note: this is a full hunter, roman numeral dial, other
than that it appears to fit the above description.
movement indiates a model 941, full movement
Changes since this report was submitted:
Double Roller changed from No to Yes
Plate changed from Unknown to Full
Hamilton Grade 940 Pocket Watch
Hamilton Grade 940 Pocket Watch