Pocket Watch Database

From the American Horology Archive:

Ball - Waltham

Grade: Official Standard

Manufacturer: Ball - Waltham
Manufacturer Location: Waltham, Massachusetts
Movement Serial Number: B262758
Grade: Official Standard
Model: 1899
Estimated Production Year: 1918
Run Quantity: 500
Grade/Model Run: 83 of 107
Grade/Model Total Production: 71,861
Size: 16s
Jewels: 19j
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: D26267, D32330
Movement Markings: Official RR Standard
Ball Watch Co.
Cleveland, O.
19 Jewels
Adjusted
5 Positions
Sapphire Pallets
Trade Mark
Pat.Nov.17.96
Case: Various
Database Version: v52.219
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
212.76
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: 3 (0.60%)
Research Note: #B262664, #B262758: 19j; Corresponds to Waltham Serial run starting with #22,262,401

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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 · June 5, 2023

Serial Number B262585 was reported as accurate.

cjbrem Supporter 499 · December 19, 2022

Serial Number B262752 was reported as accurate.

Anonymous · October 12, 2022

Serial Number B262855 was reported as accurate.

Anonymous · February 14, 2022

Serial Number B262493 was reported as inaccurate.

Note: Movement is marked Official Railroad Standard,
Cleveland, O.
It is Lever Set
Changes since this report was submitted:
Movement Setting changed from Pendant to Lever
Railroad Grade changed from No to Yes

steve288 264 · May 24, 2021

Serial Number B262700 was reported as accurate.

Swatchild 20 · April 17, 2021

Serial Number B262617 was reported as accurate.

mickroid 49 · January 10, 2021

Serial Number B262719 was reported as accurate.

Anonymous · January 6, 2021

Serial Number B262719 was reported as accurate.

Anonymous · January 24, 2019

Serial Number B262764 was reported as accurate.

Anonymous · September 26, 2017

Serial Number B262694 was reported as accurate.

ma5522 10 · December 27, 2016

Serial Number B262680 was reported as inaccurate.

Note: Movement B262680 is Lever Set and Railroad Grade
Changes since this report was submitted:
Movement Setting changed from Pendant to Lever
Railroad Grade changed from No to Yes

Anonymous · March 24, 2016

Serial Number B262520 was reported as accurate.

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

kerry104 4 · December 23, 2015

Serial Number B262763 was reported as inaccurate.

Note: Movement is "Lever" set and Railroad grade
Changes since this report was submitted:
Movement Setting changed from Pendant to Lever
Railroad Grade changed from No to Yes

Anonymous · August 28, 2014

Serial Number B262586 was reported as accurate.

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