Hamilton Pocket Watch: Serial Number 1643861 (Grade 992)

Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/hamilton/1643861

Access Date: December 02, 2022

From the American Horology Archive:

Hamilton Watch Co.

Grade: 992

Manufacturer:	Hamilton
Manufacturer Location:	Lancaster, Pennsylvania
Movement Serial Number:	1643861
Grade:	992
Model:	2
Estimated Production Year:	1923
Run Quantity:	1,000
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:	12 (1.20%)
Database Version:	v49.391

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Population Registry for This Run

	Serial Number	Run Position	Primary Identification Method	Discovery Date
1	1643122	#122	Marketplace	June 30, 2019
2	1643157	#157	Marketplace	February 23, 2013
3	1643162	#162	Marketplace	August 19, 2016
4	1643174	#174	Inferred
5	1643195	#195	Marketplace	January 11, 2020
6	1643248	#248	Marketplace	February 14, 2019
7	1643324	#324	Marketplace	November 22, 2020
8	1643583	#583	Marketplace	April 26, 2015
9	1643676	#676	Marketplace	November 03, 2014
10	1643793	#793	Collection	March 28, 2015
11	1643861	#861	Collection	March 25, 2018
12	1643864	#864	Marketplace	June 07, 2016
Standard Deviation of Known Examples: 300.93 (Expected: 288.82, Δ12.11/1.21%)

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Data Verification Reports

1643001

Verification Serial Map

1644000

Anonymous · January 21, 2021

Serial Number 1643212 was reported as accurate.

Anonymous · May 15, 2020

Serial Number 1643317 was reported as inaccurate.

Note: I am no expert but the pictures you have look
different than mine. I will be more than happy to
helpsake your database more thorough let me know
what you need Dayton Rogers, tupelos 144 believ
*****@gmail.com

Curator Response: Thanks for the report. If possible, please upload an image of the movement to your collection for further evaluation and documentation.