Pocket Watch Database


From the American Horology Archive:
Waltham Grade No. 620 Pocket Watch
Waltham Grade No. 620 Pocket Watch

American Waltham Watch Co.

Grade: No. 620

Manufacturer: Waltham Question Mark
Manufacturer Location: Waltham, Massachusetts Question Mark
Movement Serial Number: 15378260 Question Mark
Grade: No. 620 Question Mark
Model: 1899 Question Mark
Estimated Production Year: 1906 Question Mark
Run Quantity: 1,000 Question Mark
Grade/Model Run: 152 of 174 Question Mark
Grade/Model Total Production: 339,100 Question Mark
Variant Est. Production: 153,450 (16S-M1899-15J-ONP) Question Mark
Size: 16s Question Mark
Jewels: 15j Question Mark
Jewel Setting: Screw-Set Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Nickel Question Mark
Movement Inlay Color: Black Question Mark
Movement Setting: Pendant Question Mark
Plate: Bridge Plate Question Mark
Bridge Type: Center Question Mark
Regulator: Church 1892 Question Mark
Hairspring: Breguet Question Mark
Adjusted: No Question Mark
Railroad Grade: No Question Mark
Movement Markings: A.W.W.Co.
Waltham, Mass.
15 Jewels
Case: Various Question Mark
Run ID: 20003.G152.16S2174.161899M1099.O12566.P5548.15J4645 Question Mark
Data Research: 1954 Waltham "Gray Book" List
NAWCC Waltham Serial Digest
Question Mark
Database Version: v52.462 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
462.60 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
420.97 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.460% Question Mark
Registry Population:
Scoped for This Run Only
12 (1.20%) Question Mark
$ Estimated Value (12 Month Change): 5.10% Analyzing 1,581 Sales Question Mark

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.


Anonymous · August 26, 2023

Serial Number 15378086 was reported as accurate.

Anonymous · March 7, 2023

Serial Number 15377752 was reported as accurate.

Anonymous · November 3, 2022

Serial Number 15378399 was reported as accurate.

PHIL1199 Supporter 1126 · January 21, 2022

Serial Number 15377636 was reported as accurate.

Anonymous · November 27, 2020

Serial Number 15378313 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Bridge

Anonymous · March 12, 2020

Serial Number 15378053 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Bridge

geowagner 3 · July 28, 2019

Serial Number 15378260 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Bridge

Anonymous · September 15, 2018

Serial Number 15378446 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Bridge

Anonymous · July 12, 2016

Serial Number 15377772 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Bridge

spokes1 8 · November 20, 2013

Serial Number 15378317 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Bridge

spokes1 8 · November 20, 2013

Serial Number 15378317 was reported as inaccurate.

No further details were submitted with the report.
Changes since this report was submitted:
Plate changed from 3/4 to Bridge

spokes1 8 · November 20, 2013

Serial Number 15378317 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Bridge
Waltham Grade No. 620 Pocket Watch
Waltham Grade No. 620 Pocket Watch