Pocket Watch Database

From the American Horology Archive:

Ball - Waltham

Grade: Official Standard

Manufacturer: Ball - Waltham Question Mark
Manufacturer Location: Waltham, Massachusetts Question Mark
Movement Serial Number: B261871 Question Mark
Grade: Official Standard Question Mark
Model: 1899 Question Mark
Estimated Production Year: 1918 Question Mark
Run Quantity: 500 Question Mark
Grade/Model Run: 81 of 107 Question Mark
Grade/Model Total Production: 71,861 Question Mark
Size: 16s Question Mark
Jewels: 19j Question Mark
Jewel Setting: Gold Settings (Screw-Set) Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Nickel Question Mark
Finish Pattern: Circular Question Mark
Movement Setting: Lever Question Mark
Plate: 3/4 Plate Question Mark
Regulator: Reed Question Mark
Hairspring: Breguet Question Mark
Adjusted: Yes Question Mark
Adjusted to Position: Yes Question Mark
Adjusted # of Positions: 5 Question Mark
Adjusted to Temperature: Yes Question Mark
Adjusted to Isochronism: Yes Question Mark
Railroad Grade: Yes Question Mark
Railroad Grade Classification: Class A Question Mark
U.S. Patents: D32330 Question Mark
Case: Various Question Mark
Database Version: v52.433 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
213.95 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
1,381.31 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
75.276% Question Mark
Registry Population:
Scoped for This Run Only
3 (0.60%) Question Mark
Research Note: Corresponds to Waltham Serial run starting with #22,261,401

Help Us Help Others By Improving the Database:

Does this information describe your movement accurately?

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.


jaspurlock2012 Supporter 125 · September 19, 2024

Serial Number B261834 was reported as accurate.

Anonymous · August 18, 2024

Serial Number B261834 was reported as accurate.

Blicquer Supporter 90 · July 14, 2022

Serial Number B0261431 was reported as inaccurate.

Note: Sorry, should have caught this before I verified
this before. Jewel count is 15J on this example,
not 17, as confirmed by the watchmaker who cleaned
it, and because there is no pillar plate jewel for
the center wheel arbor.
Changes since this report was submitted:
Movement Setting changed from Pendant to Lever
Railroad Grade changed from No to Yes

Blicquer Supporter 90 · July 13, 2022

Serial Number B0261431 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Pendant to Lever
Railroad Grade changed from No to Yes

JPFour 8 · June 14, 2021

Serial Number B261781 was reported as inaccurate.

Note: It is lever set, not pendant set. Clearly
engraved "Trade Mark Official Standatd" with gold
plug. Dial is ORRS logo. It should be Railroad =
yes
Curator Response: Thanks for the report. Yes, lever-set would certainly be considered railroad grade. These runs will be refined in the near future based on recent research.
Changes since this report was submitted:
Movement Setting changed from Pendant to Lever
Railroad Grade changed from No to Yes

rmwatchandclock Supporter 371 · June 10, 2021

Serial Number B261781 was reported as inaccurate.

Note: Serial number B261781 is lever set and may be
considered railroad grade.
Changes since this report was submitted:
Movement Setting changed from Pendant to Lever
Railroad Grade changed from No to Yes

Anonymous · September 18, 2020

Serial Number B0261442 was reported as inaccurate.

Note: The movement is marked commercial standard
Changes since this report was submitted:
Movement Setting changed from Pendant to Lever
Railroad Grade changed from No to Yes

Anonymous · September 27, 2019

Serial Number B0261442 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Pendant to Lever
Railroad Grade changed from No to Yes

Anonymous · March 24, 2019

Serial Number B0261442 was reported as inaccurate.

Note: movement marked commercial standard
Changes since this report was submitted:
Movement Setting changed from Pendant to Lever
Railroad Grade changed from No to Yes

Anonymous · March 11, 2019

Serial Number B0261442 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Pendant to Lever
Railroad Grade changed from No to Yes

Anonymous · May 18, 2017

Serial Number B261714 was reported as inaccurate.

Note: Railroad Grade : No?
This is not accurate. Movement makes: Official RR
Standard
Curator Response: Please report whether your watch is Pendant-Set or Lever-Set. Thanks.
Changes since this report was submitted:
Movement Setting changed from Pendant to Lever
Railroad Grade changed from No to Yes

Anonymous · March 22, 2017

Serial Number B261441 was reported as inaccurate.

Note: This movement is marked Official RR Standard
Changes since this report was submitted:
Movement Setting changed from Pendant to Lever
Railroad Grade changed from No to Yes

rock862 242 · September 9, 2016

Serial Number B0261420 was reported as inaccurate.

Note: This movement is a commercial standard
Changes since this report was submitted:
Movement Setting changed from Pendant to Lever
Railroad Grade changed from No to Yes

Anonymous · August 6, 2016

Serial Number B0261474 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Pendant to Lever
Railroad Grade changed from No to Yes

rock862 242 · August 6, 2016

Serial Number B0261474 was reported as inaccurate.

Note: This movement is comical standard
Changes since this report was submitted:
Movement Setting changed from Pendant to Lever
Railroad Grade changed from No to Yes

ncplumber 150 · November 13, 2015

Serial Number B0261446 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Pendant to Lever
Railroad Grade changed from No to Yes

Anonymous · October 22, 2015

Serial Number B0261446 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Pendant to Lever
Railroad Grade changed from No to Yes

consulmollard 1 · July 29, 2015

Serial Number B261787 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Pendant to Lever
Railroad Grade changed from No to Yes

Gasperoff Supporter 727 · March 30, 2015

Serial Number B0261452 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Pendant to Lever
Railroad Grade changed from No to Yes

Anonymous · March 25, 2015

Serial Number B0261542 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Pendant to Lever
Railroad Grade changed from No to Yes

Anonymous · April 19, 2014

Serial Number B261636 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Pendant to Lever
Railroad Grade changed from No to Yes

Anonymous · March 15, 2014

Serial Number B261883 was reported as accurate.

Changes since this report was submitted:
Movement Setting changed from Pendant to Lever
Railroad Grade changed from No to Yes

Roberto 43 · January 11, 2014

Serial Number B261441 was reported as inaccurate.

Note: Lever set
Changes since this report was submitted:
Movement Setting changed from Pendant to Lever
Railroad Grade changed from No to Yes
Plate changed from Unknown to 3/4

Anonymous · November 14, 2013

Serial Number B0261412 was reported as inaccurate.

Note: only has 15 jewels
Changes since this report was submitted:
Movement Setting changed from Pendant to Lever
Railroad Grade changed from No to Yes
Plate changed from Unknown to 3/4