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: 232943
Grade: 940
Model: 1
Estimated Production Year: 1903
Run Quantity: 1,000
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
Barrel: Going
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: 23 (2.30%)
Database Version: v49.428

Population Registry for This Run

Image Serial Number Run Position Primary Identification Method Discovery Date
1 232012 #12 Marketplace October 25, 2018
2 232022 #22 Collection May 27, 2022
3 232028 #28 Marketplace March 29, 2013
4 232118 #118 Marketplace November 02, 2017
5 232147 #147 Marketplace October 21, 2021
6 232219 #219 Inferred
7 232272 #272 Marketplace August 18, 2015
8 232274 #274 Inferred
9 232315 #315 Marketplace March 17, 2019
10 232374 #374 Marketplace December 25, 2016
11 232411 #411 Marketplace March 05, 2013
12 232463 #463 Marketplace July 29, 2022
13 232507 #507 Collection October 25, 2015
14 232634 #634 Marketplace October 01, 2016
15 232648 #648 Inferred
16 232777 #777 Marketplace December 23, 2015
17 232780 #780 Collection April 02, 2020
18 232798 #798 Marketplace July 15, 2013
19 232826 #826 Collection May 02, 2018
20 232889 #889 Marketplace June 11, 2019
21 232897 #897 Marketplace June 27, 2013
22 232924 #924 Collection December 03, 2017
23 232943 #943 Collection November 07, 2020
Standard Deviation of Known Examples: 321.52 (Expected: 288.82, Δ32.70/3.27%)

Help Us Help Others By Improving the Database:

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Data Verification Reports

232001
Verification Serial Map
233000

Anonymous · August 27, 2021

Serial Number 232817 was reported as accurate.

Anonymous · February 22, 2021

Serial Number 232404 was reported as accurate.

Anonymous · April 2, 2020

Serial Number 232780 was reported as accurate.

Anonymous · March 5, 2019

Serial Number 232104 was reported as accurate.

Anonymous · January 24, 2019

Serial Number 232923 was reported as accurate.

Anonymous · December 17, 2018

Serial Number 232923 was reported as accurate.

Anonymous · September 6, 2018

Serial Number 232231 was reported as accurate.

Joerealtor 74 · February 17, 2018

Serial Number 232923 was reported as accurate.

pmtime 307 · August 23, 2017

Serial Number 232118 was reported as accurate.

Anonymous · February 11, 2017

Serial Number 232634 was reported as accurate.

Anonymous · February 1, 2017

Serial Number 232634 was reported as accurate.

Anonymous · January 8, 2017

Serial Number 232634 was reported as accurate.

krok44 22 · November 27, 2016

Serial Number 232126 was reported as accurate.

krok44 22 · November 27, 2016

Serial Number 232126 was reported as accurate.

krok44 22 · November 27, 2016

Serial Number 232126 was reported as accurate.

Anonymous · November 9, 2015

Serial Number 232507 was reported as accurate.

Anonymous · January 26, 2015

Serial Number 232022 was reported as accurate.

Anonymous · May 6, 2014

Serial Number 0232067 was reported as inaccurate.

No further details were submitted with the report.

Anonymous · July 14, 2013

Serial Number 232693 was reported as accurate.

Anonymous · February 22, 2013

Serial Number 232336 was reported as accurate.

Anonymous · September 4, 2012

Serial Number 232137 was reported as inaccurate.

Note: Plate is fullplate
Changes since this report was submitted:
Plate changed from Unknown to Full

Anonymous · May 4, 2012

Serial Number 232042 was reported as accurate.

Hamilton Grade 940 Pocket Watch
Hamilton Grade 940 Pocket Watch