Pocket Watch Database

From the American Horology Archive:

Ball - Waltham

Grade: Official Standard

Manufacturer: Ball - Waltham
Manufacturer Location: Waltham, Massachusetts
Movement Serial Number: B261921
Grade: Official Standard
Model: 1899
Estimated Production Year: 1918
Run Quantity: 500
Total Production: 71,260
Size: 16s
Jewels: 21j
Movement Configuration: Openface
Movement Finish: Nickel
Movement Setting: Lever
Plate: 3/4 Plate
Adjusted: Yes
Adjusted # of Positions: 5
Adjusted to Temperature: Yes
U.S. Patents: D32330
Case: Various
Registry Population: 1 (0.20%)
Database Version: v49.391
Research Note: Corresponds to Waltham Serial run starting with #22,261,901

Population Registry for This Run

Image Serial Number Run Position Primary Identification Method Discovery Date
1 B261921 #21 Collection September 21, 2018
Standard Deviation of Known Examples: 0.00 (Expected: 144.48, Δ144.48/28.90%)

Help Us Help Others By Improving the Database:

Does this information describe your movement accurately?

Data Verification Reports

B261901
Verification Serial Map
B262400

Anonymous · January 31, 2022

Serial Number B262079 was reported as accurate.

geneholt352 2 · April 21, 2021

Serial Number B262076 was reported as accurate.

Anonymous · March 30, 2021

Serial Number B262076 was reported as accurate.

Anonymous · May 26, 2019

Serial Number B262148 was reported as accurate.

Anonymous · June 6, 2018

Serial Number B262209 was reported as accurate.

Anonymous · May 25, 2018

Serial Number B262209 was reported as accurate.

Anonymous · May 5, 2018

Serial Number B262209 was reported as accurate.

Anonymous · December 3, 2017

Serial Number B262227 was reported as accurate.

Anonymous · May 31, 2016

Serial Number B262214 was reported as inaccurate.

Note: I have the watch in my position and it is 21 jewel
Changes since this report was submitted:
Jewels changed from 19j to 21j
Movement Setting changed from Pendant to Lever

Anonymous · August 15, 2015

Serial Number B262039 was reported as inaccurate.

Note: 21 jewel, lever set, RR grade with Ball ORRS dial
Changes since this report was submitted:
Jewels changed from 19j to 21j
Movement Setting changed from Pendant to Lever

Anonymous · March 16, 2015

Serial Number B262242 was reported as inaccurate.

No further details were submitted with the report.
Changes since this report was submitted:
Jewels changed from 19j to 21j
Movement Setting changed from Pendant to Lever

zipzillan 9 · November 17, 2014

Serial Number B261933 was reported as inaccurate.

No further details were submitted with the report.
Changes since this report was submitted:
Jewels changed from 19j to 21j
Movement Setting changed from Pendant to Lever

Timeswept2 92 · November 17, 2013

Serial Number B262006 was reported as inaccurate.

Note: Jewels: 21
Movement setting: Lever
Railroad Grade: Yes
Changes since this report was submitted:
Jewels changed from 19j to 21j
Movement Setting changed from Pendant to Lever
Plate changed from Unknown to 3/4

69abody 166 · October 26, 2013

Serial Number B262008 was reported as accurate.

Changes since this report was submitted:
Jewels changed from 19j to 21j
Movement Setting changed from Pendant to Lever