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Information Provided by PocketWatchDatabase.com:
https://pocketwatchdatabase.com/search/result/ball-waltham/B206416
Access Date: May 05, 2024
From the American Horology Archive:
Ball - Waltham

Grade: Official Standard

Manufacturer: Ball - Waltham
Manufacturer Location: Waltham, Massachusetts
Movement Serial Number: B206416
Grade: Official Standard
Model: 1899
Estimated Production Year: 1905
Run Quantity: 900
Grade/Model Run: 21 of 107
Grade/Model Total Production: 71,861
Size: 16s
Jewels: 21j
Jewel Setting: Gold Settings (Screw-Set)
Movement Configuration: Openface
Movement Finish: Nickel
Finish Pattern: Circular
Movement Setting: Lever
Plate: 3/4 Plate
Regulator: Reed
Hairspring: Breguet
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
U.S. Patents: D32330
Case: Various
Database Version: v52.249
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration		 213.95
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration		 1,381.31
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration		 75.276%
Registry Population: 1 (0.11%)
Research Note: #B206146, #B206147, #B206399, #B206412, #B206416: Reported as 21j; Corresponds to Waltham Serial run starting with #13,206,001
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Population Registry for This Run

Image Serial Number Run Position Primary Identification Method Discovery Date
There is 1 watch in the population registry for this run.
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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.

rmwatchandclock Supporter 366 · July 24, 2023

Serial Number B206265 was reported as accurate.

Anonymous · December 6, 2022

Serial Number B206718 was reported as inaccurate.

Note: The movement is marked “19 Jewels.” and has
“PAT.Nov.17.96.” marked as well indicating
patent D26267.
Curator Response: Thanks for the report. If possible, please upload an image of the movement to your collection for further evaluation and documentation.

Anonymous · August 9, 2021

Serial Number B206166 was reported as accurate.

Anonymous · January 22, 2021

Serial Number B206236 was reported as accurate.

Anonymous · July 26, 2019

Serial Number B206038 was reported as accurate.

Anonymous · October 19, 2018

Serial Number B206543 was reported as accurate.

Anonymous · October 4, 2018

Serial Number B206418 was reported as accurate.

bman8030 54 · August 25, 2018

Serial Number B206162 was reported as accurate.

Anonymous · August 10, 2018

Serial Number B206452 was reported as accurate.

Georgethejeweler 2 · August 5, 2018

Serial Number B206038 was reported as accurate.

rock862 242 · October 25, 2016

Serial Number B206412 was reported as inaccurate.

Note: This movement is marked 21jewel
Changes since this report was submitted:
Jewels changed from 19j to 21j

Anonymous · July 24, 2016

Serial Number B206399 was reported as inaccurate.

Note: This movement clearly states 21 Jewels on the
plates.
Changes since this report was submitted:
Jewels changed from 19j to 21j

dfchong 837 · July 17, 2016

Serial Number B206399 was reported as accurate.

Changes since this report was submitted:
Jewels changed from 19j to 21j

Anonymous · September 14, 2015

Serial Number B206146 was reported as inaccurate.

Note: B206146 movement stamped 21j
Changes since this report was submitted:
Jewels changed from 19j to 21j

Anonymous · February 24, 2015

Serial Number B206565 was reported as accurate.

Changes since this report was submitted:
Jewels changed from 19j to 21j

Anonymous · February 20, 2015

Serial Number B206565 was reported as accurate.

Changes since this report was submitted:
Jewels changed from 19j to 21j

Anonymous · October 29, 2014

Serial Number B206484 was reported as inaccurate.

Note: jewels
Changes since this report was submitted:
Jewels changed from 19j to 21j
Plate changed from Unknown to 3/4

bdbill 7 · June 26, 2014

Serial Number B206416 was reported as inaccurate.

Note: 21 Jewels, 3/4 plate
Changes since this report was submitted:
Jewels changed from 19j to 21j
Plate changed from Unknown to 3/4

Anonymous · May 27, 2014

Serial Number B206147 was reported as inaccurate.

No further details were submitted with the report.
Changes since this report was submitted:
Jewels changed from 19j to 21j
Plate changed from Unknown to 3/4

Anonymous · January 11, 2014

Serial Number B206474 was reported as accurate.

Changes since this report was submitted:
Jewels changed from 19j to 21j

Anonymous · January 3, 2014

Serial Number B206048 was reported as accurate.

Changes since this report was submitted:
Jewels changed from 19j to 21j

Anonymous · September 6, 2013

Serial Number B206841 was reported as inaccurate.

No further details were submitted with the report.
Changes since this report was submitted:
Jewels changed from 19j to 21j
Plate changed from Unknown to 3/4

rondeg 45 · July 29, 2013

Serial Number B206147 was reported as inaccurate.

Note: 21 Jewels
3/4 Plate
Changes since this report was submitted:
Jewels changed from 19j to 21j
Plate changed from Unknown to 3/4