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: 1578123
Grade: 992
Model: 2
Estimated Production Year: 1921
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: 21 (1.05%)
Database Version: v49.391

Population Registry for This Run

Image Serial Number Run Position Primary Identification Method Discovery Date
1 1578123 #123 Collection January 12, 2021
2 1578221 #221 Marketplace June 06, 2014
3 1578414 #414 Marketplace May 01, 2014
4 1578697 #697 Marketplace January 13, 2022
5 1578750 #750 Collection December 03, 2015
6 1578766 #766 Marketplace July 27, 2017
7 1578795 #795 Inferred
8 1578833 #833 Marketplace July 19, 2017
9 1578863 #863 Marketplace July 13, 2015
10 1578968 #968 Marketplace July 22, 2022
11 1579145 #1145 Marketplace February 11, 2020
12 1579146 #1146 Collection August 26, 2015
13 1579201 #1201 Marketplace May 04, 2017
14 1579311 #1311 Marketplace August 04, 2014
15 1579449 #1449 Marketplace March 08, 2017
16 1579617 #1617 Collection January 16, 2019
17 1579619 #1619 Collection April 11, 2013
18 1579621 #1621 Marketplace March 10, 2014
19 1579752 #1752 Marketplace October 15, 2015
20 1579859 #1859 Marketplace September 13, 2022
21 1579882 #1882 Marketplace January 05, 2017
Standard Deviation of Known Examples: 521.22 (Expected: 577.49, Δ56.28/2.81%)

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Data Verification Reports

1578001
Verification Serial Map
1580000

Anonymous · March 16, 2022

Serial Number 1579741 was reported as accurate.

Anonymous · September 4, 2020

Serial Number 1579126 was reported as accurate.

Anonymous · August 24, 2020

Serial Number 1578561 was reported as accurate.

Anonymous · February 21, 2020

Serial Number 1579145 was reported as accurate.

Anonymous · January 15, 2019

Serial Number 1579166 was reported as accurate.

Anonymous · November 4, 2018

Serial Number 1579106 was reported as accurate.

Anonymous · July 17, 2018

Serial Number 1578713 was reported as accurate.

Anonymous · June 16, 2018

Serial Number 1579865 was reported as accurate.

orotreasures 13 · December 13, 2017

Serial Number 1579372 was reported as accurate.

Anonymous · July 27, 2017

Serial Number 1578766 was reported as accurate.

mpopp125 1 · June 18, 2017

Serial Number 1579605 was reported as accurate.

Anonymous · May 4, 2017

Serial Number 1579201 was reported as accurate.

Anonymous · April 22, 2016

Serial Number 1578795 was reported as accurate.

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

MikeStanford 20 · October 8, 2015

Serial Number 1578277 was reported as inaccurate.

Note: On eBay 10/15, sold as movement only; no case,
dial, or hands.
Changes since this report was submitted:
Factory Model changed from 1 to 2

MikeStanford 20 · October 8, 2015

Serial Number 1578277 was reported as inaccurate.

Note: On eBay 10/15, sold as movement only; no case,
dial, or hands.
Changes since this report was submitted:
Factory Model changed from 1 to 2

Anonymous · September 30, 2015

Serial Number 1578277 was reported as accurate.

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

Anonymous · September 14, 2015

Serial Number 1578277 was reported as accurate.

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

Anonymous · August 26, 2015

Serial Number 1579146 was reported as accurate.

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

Anonymous · April 9, 2015

Serial Number 1578232 was reported as accurate.

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

Anonymous · April 5, 2015

Serial Number 1578232 was reported as accurate.

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

lmwhite111 26 · October 31, 2014

Serial Number 1578291 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 · August 11, 2014

Serial Number 1579659 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 · June 19, 2014

Serial Number 1579146 was reported as accurate.

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

rocket00 236 · May 20, 2014

Serial Number 1578414 was reported as accurate.

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

Anonymous · April 23, 2014

Serial Number 1578141 was reported as accurate.

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

jaspurlock2012 43 · February 24, 2014

Serial Number 1579621 was reported as accurate.

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

dnewman 4 · June 22, 2013

Serial Number 1579198 was reported as accurate.

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

Anonymous · June 22, 2013

Serial Number 1579198 was reported as accurate.

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

Anonymous · January 24, 2013

Serial Number 1579821 was reported as accurate.

Changes since this report was submitted:
Factory Model changed from 18 to 2
Double Roller changed from No to Yes

Anonymous · June 7, 2012

Serial Number 1579717 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