Hamilton Pocket Watch: Serial Number 568291 (Grade 936)

Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/hamilton/568291

Access Date: January 27, 2023

From the American Horology Archive:

Hamilton Watch Co.

Grade: 936

Manufacturer:	Hamilton
Manufacturer Location:	Lancaster, Pennsylvania
Movement Serial Number:	568291
Grade:	936
Model:	1
Class:	2
Estimated Production Year:	1908
Run Quantity:	1,000
Grade/Model Total Production:	23,507
Size:	18s
Jewels:	17j
Jewel Setting:	Gold Settings (Screw-Set)
Movement Configuration:	Openface
Movement Finish:	Nickel
Movement Setting:	Lever
Plate:	Full Plate
Double Roller:	Yes
Barrel:	Going
Regulator:	Goldthwait
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
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:	15 (1.50%)
Database Version:	v49.701

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Population Registry for This Run

	Image	Serial Number	Run Position	Primary Identification Method	Discovery Date
1		568131	#131	Collection	July 05, 2016
2		568160	#160	Marketplace	August 28, 2013
3		568212	#212	Marketplace	January 17, 2017
4		568227	#227	Marketplace	September 04, 2022
5		568236	#236	Marketplace	October 29, 2015
6	Image Credit: rjandladyj	568291	#291	Collection	May 13, 2014
7		568335	#335	Collection	March 22, 2022
8		568437	#437	Inferred
9		568449	#449	Marketplace	August 22, 2013
10		568457	#457	Inferred
11		568582	#582	Collection	February 08, 2014
12		568618	#618	Collection	September 13, 2018
13		568852	#852	Marketplace	April 02, 2021
14		568942	#942	Marketplace	September 17, 2021
15	Image Credit: slufdriver	568985	#985	Collection	February 22, 2020
Standard Deviation of Known Examples: 281.64 (Expected: 288.82, Δ7.18/0.72%)

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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.