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: 621245
Grade: 940
Model: 1
Estimated Production Year: 1909
Run Quantity: 2,700
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: 44 (1.63%)
Database Version: v49.391

Population Registry for This Run

Image Serial Number Run Position Primary Identification Method Discovery Date
1 620017 #17 Marketplace June 30, 2014
2 620025 #25 Marketplace November 28, 2015
3 620213 #213 Marketplace December 10, 2012
4 620306 #306 Marketplace December 22, 2021
5 620319 #319 Inferred
6 620459 #459 Marketplace March 28, 2018
7 620460 #460 Marketplace October 05, 2013
8 620495 #495 Marketplace March 29, 2020
9 620529 #529 Collection December 04, 2021
10 620563 #563 Marketplace May 02, 2015
11 620572 #572 Marketplace January 07, 2022
12 620582 #582 Collection August 20, 2016
13 620643 #643 Marketplace September 30, 2018
14 620694 #694 Collection October 09, 2017
15 620889 #889 Marketplace May 26, 2021
16 620933 #933 Marketplace June 27, 2021
17 620951 #951 Marketplace December 06, 2018
18 621147 #1147 Collection January 22, 2013
19 621204 #1204 Collection December 06, 2021
20 621237 #1237 Marketplace March 22, 2022
21 621245 #1245 Collection March 22, 2019
22 621257 #1257 Marketplace December 09, 2012
23 621269 #1269 Marketplace October 27, 2015
24 621313 #1313 Marketplace November 01, 2017
25 621367 #1367 Marketplace May 09, 2021
26 621416 #1416 Marketplace January 19, 2020
27 621594 #1594 Marketplace April 08, 2014
28 621641 #1641 Marketplace August 21, 2018
29 621706 #1706 Marketplace February 03, 2013
30 621877 #1877 Marketplace June 26, 2019
31 621881 #1881 Marketplace September 30, 2013
32 621987 #1987 Collection May 26, 2015
33 621997 #1997 Marketplace December 20, 2016
34 622018 #2018 Marketplace June 15, 2017
35 622041 #2041 Marketplace June 07, 2019
36 622083 #2083 Collection October 12, 2015
37 622163 #2163 Marketplace June 20, 2021
38 622172 #2172 Marketplace August 16, 2015
39 622330 #2330 Marketplace October 06, 2016
40 622383 #2383 Marketplace May 16, 2022
41 622548 #2548 Marketplace July 31, 2018
42 622580 #2580 Marketplace July 03, 2020
43 622643 #2643 Marketplace August 24, 2014
44 622656 #2656 Marketplace June 05, 2014
Standard Deviation of Known Examples: 779.84 (Expected: 779.57, Δ0.27/0.01%)

Help Us Help Others By Improving the Database:

Does this information describe your movement accurately?

Data Verification Reports

620001
Verification Serial Map
622700

Anonymous · October 25, 2022

Serial Number 620709 was reported as accurate.

Anonymous · June 21, 2020

Serial Number 620319 was reported as accurate.

Anonymous · June 17, 2020

Serial Number 620117 was reported as accurate.

Anonymous · May 18, 2019

Serial Number 622142 was reported as accurate.

Anonymous · May 2, 2019

Serial Number 620554 was reported as accurate.

Anonymous · November 6, 2018

Serial Number 620951 was reported as accurate.

Anonymous · November 5, 2018

Serial Number 620219 was reported as accurate.

Anonymous · March 25, 2018

Serial Number 621671 was reported as accurate.

DoodleBug 36 · November 2, 2017

Serial Number 622666 was reported as accurate.

Alellisande 1 · October 9, 2017

Serial Number 620694 was reported as accurate.

Anonymous · October 9, 2017

Serial Number 620694 was reported as accurate.

Anonymous · January 6, 2017

Serial Number 621155 was reported as accurate.

tysonni Supporter 57 · June 3, 2016

Serial Number 622253 was reported as accurate.

Anonymous · March 31, 2016

Serial Number 620842 was reported as accurate.

Anonymous · February 7, 2016

Serial Number 621442 was reported as accurate.

Anonymous · December 5, 2015

Serial Number 620025 was reported as accurate.

ticker32 Supporter 75 · November 1, 2015

Serial Number 621202 was reported as accurate.

Anonymous · September 10, 2015

Serial Number 621236 was reported as inaccurate.

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

Anonymous · August 19, 2015

Serial Number 621236 was reported as accurate.

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

jjea99 19 · January 10, 2015

Serial Number 620286 was reported as accurate.

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

Dondon 13 · December 31, 2014

Serial Number 622083 was reported as accurate.

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

Anonymous · October 8, 2014

Serial Number 621236 was reported as accurate.

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

Gimparoo Supporter 703 · April 8, 2014

Serial Number 621802 was reported as accurate.

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

Anonymous · February 12, 2014

Serial Number 620466 was reported as accurate.

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

Anonymous · December 4, 2013

Serial Number 621989 was reported as accurate.

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

Anonymous · October 24, 2013

Serial Number 620469 was reported as accurate.

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

Anonymous · August 27, 2013

Serial Number 621705 was reported as accurate.

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

Anonymous · August 5, 2013

Serial Number 621126 was reported as accurate.

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

Anonymous · July 17, 2013

Serial Number 621109 was reported as accurate.

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

Anonymous · July 15, 2013

Serial Number 621705 was reported as accurate.

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

rickenix 4 · July 14, 2013

Serial Number 622093 was reported as accurate.

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

Anonymous · January 22, 2013

Serial Number 621147 was reported as accurate.

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

Anonymous · January 20, 2013

Serial Number 621911 was reported as accurate.

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

Anonymous · December 31, 2012

Serial Number 622408 was reported as accurate.

Anonymous · December 12, 2012

Serial Number 621257 was reported as inaccurate.

No further details were submitted with the report.

Anonymous · October 28, 2012

Serial Number 620366 was reported as accurate.

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

Anonymous · September 7, 2012

Serial Number 620531 was reported as accurate.

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

Anonymous · September 5, 2012

Serial Number 620531 was reported as accurate.

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

Anonymous · August 26, 2012

Serial Number 621151 was reported as accurate.

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

Anonymous · June 14, 2012

Serial Number 621955 was reported as accurate.

Changes since this report was submitted:
Double Roller changed from No to Yes
Hamilton Grade 940 Pocket Watch
Hamilton Grade 940 Pocket Watch