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: 16274415 Question Mark
Grade: No. 620 Question Mark
Model: 1899 Question Mark
Estimated Production Year: 1907 Question Mark
Run Quantity: 3,000 Question Mark
Grade/Model Run: 172 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: 20644.G177.16S2369.161899M1282.O12905.P6024.15J4774 Question Mark
Data Research: 1954 Waltham "Gray Book" List
NAWCC Waltham Serial Digest
Question Mark
Database Version: v52.530 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
11 (0.37%) Question Mark
$ Estimated Value (12 Month Change): 4.76% Analyzing 1,584 Sales Question Mark

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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 3, 2022

Serial Number 16273791 was reported as accurate.

bwcrtime 191 · June 16, 2021

Serial Number 16275213 was reported as accurate.

chuck1500 112 · January 29, 2021

Serial Number 16274415 was reported as accurate.

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

chuck1500 112 · January 19, 2021

Serial Number 16274418 was reported as accurate.

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

Rcardkidz 4142 · August 3, 2020

Serial Number 16276444 was reported as accurate.

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

Watchywatch 1 · March 25, 2020

Serial Number 16275106 was reported as accurate.

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

Anonymous · August 17, 2019

Serial Number 16275647 was reported as accurate.

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

Ahaynes 9 · March 6, 2019

Serial Number 16275626 was reported as accurate.

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

hankwoodbrey 1 · December 20, 2017

Serial Number 16275449 was reported as accurate.

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

dawnwoodbrey 1 · December 10, 2017

Serial Number 16275449 was reported as accurate.

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

Anonymous · February 14, 2016

Serial Number 16273520 was reported as accurate.

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

Anonymous · December 26, 2014

Serial Number 16276396 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