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: 1676151
Grade: 992
Model: 2
Estimated Production Year: 1923
Run Quantity: 2,000
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: v49.391

Population Registry for This Run

Image Serial Number Run Position Primary Identification Method Discovery Date
1 1676068 #68 Collection December 13, 2021
2 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 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 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%)

Help Us Help Others By Improving the Database:

Does this information describe your movement accurately?

Data Verification Reports

1676001
Verification Serial Map
1678000

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 279 · 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 152 · 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 3502 · 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