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
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: 105 (1.50%)
Database Version: v49.391
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.

Population Registry for This Run

Image Serial Number Run Position Primary Identification Method Discovery Date
1 594058 #58 Marketplace September 30, 2022
2 594076 #76 Collection March 06, 2021
3 594207 #207 Marketplace January 02, 2019
4 594279 #279 Marketplace April 24, 2022
5 594300 #300 Marketplace October 09, 2014
6 594312 #312 Inferred
7 594329 #329 Inferred
8 594580 #580 Marketplace February 25, 2015
9 594593 #593 Inferred
10 594745 #745 Collection July 19, 2019
11 594785 #785 Marketplace September 26, 2019
12 594964 #964 Collection January 07, 2017
13 594974 #974 Marketplace February 15, 2019
14 595017 #1017 Marketplace August 31, 2022
15 595028 #1028 Collection August 29, 2014
16 595097 #1097 Marketplace October 31, 2018
17 595124 #1124 Inferred
18 595137 #1137 Collection June 12, 2019
19 595174 #1174 Collection March 23, 2013
20 595200 #1200 Marketplace March 12, 2021
21 595466 #1466 Marketplace September 26, 2017
22 595527 #1527 Marketplace December 12, 2017
23 595534 #1534 Marketplace October 02, 2016
24 595642 #1642 Marketplace February 11, 2019
25 595668 #1668 Marketplace August 27, 2013
26 595687 #1687 Marketplace May 19, 2017
27 595740 #1740 Collection May 06, 2016
28 595768 #1768 Marketplace April 10, 2014
29 596030 #2030 Marketplace April 13, 2015
30 596036 #2036 Marketplace September 01, 2015
31 596100 #2100 Marketplace May 25, 2017
32 596150 #2150 Marketplace July 29, 2013
33 596180 #2180 Inferred
34 596199 #2199 Marketplace September 04, 2020
35 596233 #2233 Marketplace March 02, 2020
36 596289 #2289 Marketplace September 12, 2020
37 596341 #2341 Collection December 10, 2020
38 596534 #2534 Collection November 28, 2019
39 596540 #2540 Marketplace August 31, 2020
40 596654 #2654 Marketplace July 14, 2015
41 596686 #2686 Marketplace March 08, 2013
42 596721 #2721 Collection September 21, 2018
43 596728 #2728 Marketplace July 10, 2016
44 596761 #2761 Marketplace September 09, 2013
45 596813 #2813 Marketplace April 03, 2019
46 596821 #2821 Marketplace August 29, 2019
47 596853 #2853 Marketplace June 24, 2022
48 596867 #2867 Marketplace August 18, 2013
49 596888 #2888 Inferred
50 596969 #2969 Marketplace March 17, 2022
51 597015 #3015 Collection August 26, 2015
52 597052 #3052 Marketplace June 03, 2014
53 597095 #3095 Marketplace April 24, 2013
54 597127 #3127 Collection December 28, 2016
55 597283 #3283 Collection January 27, 2018
56 597286 #3286 Marketplace October 12, 2014
57 597333 #3333 Collection October 20, 2020
58 597348 #3348 Marketplace March 23, 2013
59 597349 #3349 Marketplace March 05, 2021
60 597406 #3406 Collection January 12, 2016
61 597486 #3486 Marketplace July 19, 2022
62 597561 #3561 Marketplace January 26, 2014
63 597626 #3626 Marketplace April 11, 2016
64 597722 #3722 Marketplace September 08, 2016
65 597939 #3939 Collection December 21, 2016
66 598029 #4029 Collection July 18, 2015
67 598101 #4101 Inferred
68 598102 #4102 Marketplace November 13, 2016
69 598112 #4112 Marketplace November 22, 2021
70 598131 #4131 Inferred
71 598210 #4210 Marketplace September 12, 2013
72 598315 #4315 Marketplace October 24, 2022
73 598342 #4342 Collection April 15, 2021
74 598371 #4371 Marketplace December 16, 2021
75 598431 #4431 Collection October 24, 2015
76 598466 #4466 Collection January 16, 2018
77 598552 #4552 Inferred
78 598569 #4569 Marketplace February 07, 2013
79 598661 #4661 Collection November 08, 2015
80 598672 #4672 Marketplace November 12, 2012
81 598695 #4695 Marketplace September 20, 2013
82 598704 #4704 Marketplace December 27, 2018
83 598752 #4752 Collection September 17, 2013
84 598858 #4858 Marketplace September 16, 2018
85 598896 #4896 Marketplace September 19, 2018
86 599068 #5068 Marketplace March 22, 2017
87 599086 #5086 Inferred
88 599109 #5109 Marketplace January 03, 2020
89 599445 #5445 Marketplace November 14, 2017
90 599448 #5448 Marketplace October 12, 2020
91 599450 #5450 Marketplace April 19, 2013
92 599516 #5516 Marketplace August 31, 2013
93 599553 #5553 Marketplace February 26, 2015
94 599690 #5690 Marketplace May 16, 2014
95 599838 #5838 Marketplace March 11, 2022
96 599949 #5949 Collection February 28, 2015
97 599972 #5972 Marketplace July 18, 2018
98 600262 #6262 Marketplace July 10, 2014
99 600293 #6293 Marketplace June 14, 2018
100 600347 #6347 Inferred
101 600437 #6437 Marketplace December 22, 2018
102 600516 #6516 Marketplace May 01, 2016
103 600588 #6588 Marketplace June 01, 2015
104 600744 #6744 Marketplace May 25, 2018
105 600846 #6846 Inferred
Standard Deviation of Known Examples: 1,826.56 (Expected: 2,020.87, Δ194.31/2.78%)

Help Us Help Others By Improving the Database:

Does this information describe your movement accurately?

Data Verification Reports

594001
Verification Serial Map
601000

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 577 · 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.

Anonymous · November 29, 2017

Serial Number 594432 was reported as accurate.

Anonymous · November 19, 2017

Serial Number 595720 was reported as accurate.

Gimparoo Supporter 703 · November 17, 2017

Serial Number 599445 was reported as accurate.

Anonymous · October 27, 2017

Serial Number 594432 was reported as accurate.

Anonymous · October 1, 2017

Serial Number 599007 was reported as accurate.

Anonymous · September 17, 2017

Serial Number 599738 was reported as accurate.

Anonymous · August 18, 2017

Serial Number 597075 was reported as accurate.

Anonymous · August 4, 2017

Serial Number 600014 was reported as accurate.

Anonymous · July 28, 2017

Serial Number 598221 was reported as accurate.

Anonymous · March 20, 2017

Serial Number 599576 was reported as accurate.

Anonymous · March 2, 2017

Serial Number 598216 was reported as accurate.

Anonymous · January 9, 2017

Serial Number 597507 was reported as accurate.

Anonymous · January 1, 2017

Serial Number 594245 was reported as accurate.

oduffy42 1 · December 28, 2016

Serial Number 597127 was reported as accurate.

Anonymous · December 28, 2016

Serial Number 597127 was reported as accurate.

Dollarwatchman 6 · September 22, 2016

Serial Number 597722 was reported as accurate.

Anonymous · August 8, 2016

Serial Number 599199 was reported as accurate.

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

Mydogs12345 4 · May 6, 2016

Serial Number 595740 was reported as accurate.

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

Anonymous · April 26, 2016

Serial Number 596734 was reported as accurate.

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

moldess 22 · April 15, 2016

Serial Number 597206 was reported as accurate.

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

Anonymous · January 8, 2016

Serial Number 594100 was reported as accurate.

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

Anonymous · January 2, 2016

Serial Number 594217 was reported as accurate.

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

Anonymous · December 12, 2015

Serial Number 600287 was reported as accurate.

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

Gasperoff 727 · November 22, 2015

Serial Number 598661 was reported as accurate.

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

Mydogs12345 4 · November 14, 2015

Serial Number 595740 was reported as accurate.

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

Anonymous · November 9, 2015

Serial Number 600645 was reported as accurate.

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

jhkunkel 40 · November 8, 2015

Serial Number 598661 was reported as accurate.

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

Anonymous · October 24, 2015

Serial Number 598431 was reported as accurate.

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

Anonymous · October 21, 2015

Serial Number 600471 was reported as accurate.

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

Anonymous · September 13, 2015

Serial Number 600864 was reported as accurate.

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

Anonymous · September 12, 2015

Serial Number 597392 was reported as accurate.

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

Anonymous · August 26, 2015

Serial Number 597015 was reported as accurate.

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

Anonymous · June 9, 2015

Serial Number 597899 was reported as accurate.

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

Anonymous · May 30, 2015

Serial Number 597202 was reported as accurate.

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

timerestored 278 · February 9, 2015

Serial Number 599949 was reported as accurate.

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

Anonymous · February 1, 2015

Serial Number 599621 was reported as accurate.

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

Anonymous · November 12, 2014

Serial Number 594908 was reported as accurate.

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

Anonymous · August 27, 2014

Serial Number 595768 was reported as accurate.

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

Anonymous · August 11, 2014

Serial Number 600788 was reported as accurate.

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

Anonymous · July 27, 2014

Serial Number 597010 was reported as accurate.

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

Anonymous · July 19, 2014

Serial Number 600262 was reported as accurate.

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

Anonymous · June 23, 2014

Serial Number 595124 was reported as accurate.

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

Anonymous · June 15, 2014

Serial Number 598075 was reported as accurate.

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

Anonymous · May 11, 2014

Serial Number 595768 was reported as accurate.

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

Anonymous · October 14, 2013

Serial Number 597225 was reported as accurate.

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

Timeswept2 92 · September 30, 2013

Serial Number 595668 was reported as accurate.

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

Timeswept2 92 · September 23, 2013

Serial Number 595668 was reported as accurate.

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

Anonymous · September 17, 2013

Serial Number 598197 was reported as accurate.

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

Anonymous · May 20, 2013

Serial Number 596047 was reported as accurate.

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

Anonymous · April 17, 2013

Serial Number 598569 was reported as accurate.

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

Anonymous · April 7, 2013

Serial Number 597828 was reported as accurate.

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

Anonymous · March 23, 2013

Serial Number 595174 was reported as accurate.

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

Anonymous · March 15, 2013

Serial Number 595801 was reported as accurate.

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

Anonymous · February 14, 2013

Serial Number 598569 was reported as accurate.

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

Anonymous · December 28, 2012

Serial Number 598672 was reported as accurate.

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

Anonymous · November 27, 2012

Serial Number 598811 was reported as accurate.

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

Anonymous · May 3, 2012

Serial Number 600608 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