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: 13550850 Question Mark
Grade: No. 620 Question Mark
Model: 1899 Question Mark
Estimated Production Year: 1904 Question Mark
Run Quantity: 2,000 Question Mark
Grade/Model Run: 107 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: 18909.G107.16S1846.161899M787.O11915.P4702.15J4387 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
18 (0.90%) Question Mark
$ Estimated Value (12 Month Change): 5.10% Analyzing 1,581 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 · March 10, 2024

Serial Number 13550421 was reported as accurate.

Anonymous · February 5, 2022

Serial Number 13551890 was reported as accurate.

Anonymous · February 1, 2022

Serial Number 13551890 was reported as accurate.

Scott19 9 · September 28, 2021

Serial Number 13551890 was reported as accurate.

cargs25 18 · July 23, 2021

Serial Number 13550325 was reported as accurate.

Anonymous · April 16, 2021

Serial Number 13550812 was reported as accurate.

Anonymous · February 23, 2021

Serial Number 13550659 was reported as accurate.

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

strap89 11 · December 5, 2020

Serial Number 13550850 was reported as accurate.

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

Anonymous · October 16, 2019

Serial Number 13551086 was reported as accurate.

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

cargs25 18 · May 4, 2018

Serial Number 13550325 was reported as accurate.

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

cargs25 18 · April 30, 2018

Serial Number 13550325 was reported as accurate.

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

cmdraven 4083 · April 21, 2018

Serial Number 13550325 was reported as accurate.

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

snookdog 4 · December 9, 2015

Serial Number 13550717 was reported as accurate.

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

snookdog 4 · November 9, 2015

Serial Number 13550717 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