Pocket Watch Database

From the American Horology Archive:
Hamilton Grade 992 Pocket Watch
Hamilton Grade 992 Pocket Watch

Hamilton Watch Co.

Grade: 992

Manufacturer: Hamilton
Manufacturer Location: Lancaster, Pennsylvania
Movement Serial Number: 1677946
Grade: 992
Model: 2
Estimated Production Year: 1923
Run Quantity: 2,000
Grade/Model Total Production: 447,200
Size: 16s
Jewels: 21j
Jewel Material: Ruby & Sapphire
Jewel Setting: Gold Settings (Screw-Set)
Movement Configuration: Openface
Movement Finish: Nickel
Finish Pattern: 2nd Pattern (bar)
Movement Setting: Lever
Plate: 3/4 Plate
Double Roller: Yes
Barrel: Going
Center Wheel Material: Gold
Regulator: Reed
Hairspring: Breguet
Pallet Jewel Material: Sapphire
Standard Dial Type: Double-Sunk
Adjusted: Yes
Adjusted to Position: Yes
Adjusted # of Positions: 5
Adjusted to Temperature: Yes
Adjusted to Isochronism: Yes
Adjustment Tolerance: DUvDD: +/- 6 sec.; 5Pv: +/- 10 sec.; Total Average: +3-6 sec. per day; Temperature: +/- 6 Seconds
Railroad Grade: Yes
Dial Feet Locations: 22.3, 38.0, 57.1
Hamilton 16s Dial Feet Research
Data Research: 1953 Hamilton Serial List
Case: Various
Registry Population: 23 (1.15%)
Database Version: v49.716

Population Registry for This Run

Image Serial Number Run Position Primary Identification Method Discovery Date
1
Image Credit: Reaganlee
1676068 #68 Collection December 13, 2021
2
Image Credit: Rickglick1
1676151 #151 Collection August 29, 2021
3 1676160 #160 Marketplace August 12, 2020
4 1676254 #254 Collection February 03, 2018
5 1676474 #474 Marketplace March 11, 2016
6 1676476 #476 Marketplace June 12, 2019
7 1676678 #678 Inferred
8 1676704 #704 Marketplace May 02, 2013
9 1676869 #869 Marketplace January 12, 2017
10 1676909 #909 Marketplace October 16, 2014
11 1677003 #1003 Marketplace September 25, 2018
12 1677054 #1054 Collection May 20, 2015
13 1677295 #1295 Marketplace July 12, 2013
14 1677304 #1304 Marketplace December 31, 2013
15
Image Credit: KJJackson
1677307 #1307 Collection December 23, 2017
16 1677374 #1374 Collection April 22, 2015
17 1677485 #1485 Collection August 15, 2015
18 1677566 #1566 Marketplace July 10, 2021
19 1677654 #1654 Collection December 16, 2020
20 1677664 #1664 Marketplace October 22, 2018
21 1677929 #1929 Marketplace January 04, 2020
22
Image Credit: DEzzyD
1677946 #1946 Collection February 12, 2022
23 1677966 #1966 Marketplace October 28, 2020
Standard Deviation of Known Examples: 605.99 (Expected: 577.49, Δ28.50/1.42%)

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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 · May 21, 2022

Serial Number 1676990 was reported as accurate.

Anonymous · July 27, 2021

Serial Number 1677943 was reported as accurate.

Anonymous · June 22, 2021

Serial Number 1677943 was reported as accurate.

rmwatchandclock Supporter 290 · May 13, 2021

Serial Number 1677654 was reported as accurate.

Anonymous · September 9, 2020

Serial Number 1676457 was reported as accurate.

Anonymous · August 13, 2020

Serial Number 1677727 was reported as accurate.

23Greenwich Supporter 158 · August 12, 2020

Serial Number 1676160 was reported as accurate.

Anonymous · January 29, 2020

Serial Number 1676165 was reported as accurate.

Anonymous · November 7, 2019

Serial Number 1677592 was reported as accurate.

Anonymous · September 10, 2019

Serial Number 1677754 was reported as accurate.

Glfcstelf 1 · August 29, 2018

Serial Number 1676461 was reported as accurate.

Anonymous · May 3, 2018

Serial Number 1677173 was reported as accurate.

Anonymous · May 1, 2018

Serial Number 1677173 was reported as accurate.

cmdraven 3542 · December 29, 2017

Serial Number 1676757 was reported as accurate.

Anonymous · April 8, 2017

Serial Number 1677577 was reported as accurate.

Anonymous · April 8, 2017

Serial Number 1677877 was reported as accurate.

Anonymous · February 8, 2017

Serial Number 1676834 was reported as accurate.

Anonymous · January 26, 2017

Serial Number 1676869 was reported as accurate.

Anonymous · June 4, 2016

Serial Number 1676868 was reported as accurate.

Changes since this report was submitted:
Factory Model changed from 1 to 2

Anonymous · April 28, 2016

Serial Number 1676635 was reported as accurate.

Changes since this report was submitted:
Factory Model changed from 1 to 2

Anonymous · September 10, 2015

Serial Number 1677640 was reported as accurate.

Changes since this report was submitted:
Factory Model changed from 1 to 2

thomase 42 · March 14, 2015

Serial Number 1676902 was reported as accurate.

Changes since this report was submitted:
Factory Model changed from 1 to 2

thomase 42 · March 14, 2015

Serial Number 1676902 was reported as accurate.

Changes since this report was submitted:
Factory Model changed from 1 to 2

jmfk616 6 · February 13, 2014

Serial Number 1676585 was reported as accurate.

Changes since this report was submitted:
Factory Model changed from 1 to 2

Anonymous · August 3, 2013

Serial Number 1676704 was reported as inaccurate.

No further details were submitted with the report.
Changes since this report was submitted:
Factory Model changed from 1 to 2

Anonymous · July 20, 2013

Serial Number 1677864 was reported as accurate.

Changes since this report was submitted:
Factory Model changed from 1 to 2

Anonymous · May 18, 2012

Serial Number 1676513 was reported as accurate.

Changes since this report was submitted:
Factory Model changed from 18 to 2
Double Roller changed from No to Yes
Hamilton Grade 992 Pocket Watch
Hamilton Grade 992 Pocket Watch