Pocket Watch Database

From the American Horology Archive:
Hamilton Grade 936 Pocket Watch
Hamilton Grade 936 Pocket Watch

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

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.


Anonymous · May 22, 2021

Serial Number 568852 was reported as accurate.

Anonymous · March 29, 2021

Serial Number 568852 was reported as accurate.

Humphrey Supporter 44 · December 15, 2020

Serial Number 568852 was reported as accurate.

Anonymous · September 16, 2020

Serial Number 568478 was reported as accurate.

slufdriver 60 · February 22, 2020

Serial Number 568985 was reported as accurate.

Anonymous · November 16, 2019

Serial Number 568581 was reported as accurate.

Anonymous · January 25, 2018

Serial Number 568472 was reported as accurate.

Anonymous · February 27, 2017

Serial Number 568480 was reported as accurate.

colaman6mcq Supporter 150 · July 5, 2016

Serial Number 568131 was reported as accurate.

rock862 242 · June 23, 2016

Serial Number 568131 was reported as accurate.

Anonymous · August 12, 2015

Serial Number 568632 was reported as accurate.

Anonymous · March 4, 2015

Serial Number 568001 was reported as accurate.

Hamilton Grade 936 Pocket Watch
Hamilton Grade 936 Pocket Watch