Pocket Watch Database

From the American Horology Archive:
Waltham Grade No. 645 Pocket Watch

American Waltham Watch Co.

Grade: No. 645

Manufacturer: Waltham Question Mark
Manufacturer Location: Waltham, Massachusetts Question Mark
Movement Serial Number: 19078500 Question Mark
Grade: No. 645 Question Mark
Model: 1908 Question Mark
Estimated Production Year: 1913 Question Mark
Run Quantity: 1,000 Question Mark
Grade/Model Run: 25 of 66 Question Mark
Grade/Model Total Production: 59,300 Question Mark
Size: 16s Question Mark
Jewels: 21j Question Mark
Jewel Material: Ruby Question Mark
Jewel Setting: Screw-Set Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Nickel Question Mark
Movement Setting: Lever Question Mark
Plate: Bridge Plate Question Mark
Double Roller: Yes Question Mark
Barrel: Jeweled Motor Question Mark
Regulator: Micrometer Question Mark
Hairspring: Breguet Question Mark
Pallet Jewel Material: Sapphire Question Mark
Standard Dial Type: Double-Sunk 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
Case: Various Question Mark
Run ID: 22330.G31.16S2980.161908M550.O13856.L5355.21J427 Question Mark
Data Research: 1954 Waltham "Gray Book" List
NAWCC Waltham Serial Digest
Question Mark
Database Version: v52.587 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
178.54 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
162.47 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.177% Question Mark
Registry Population:
Scoped for This Run Only
19 (1.90%) Question Mark
$ Estimated Value (12 Month Change): 6.19% Analyzing 473 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.


Rcardkidz 4162 · July 16, 2022

Serial Number 19078544 was reported as accurate.

Anonymous · April 12, 2022

Serial Number 19078415 was reported as accurate.

garydurie Supporter 29 · August 31, 2021

Serial Number 19078500 was reported as accurate.

Anonymous · March 27, 2021

Serial Number 19078807 was reported as accurate.

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

Anonymous · November 16, 2020

Serial Number 19078124 was reported as accurate.

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

Superdave64 18 · April 19, 2019

Serial Number 19078166 was reported as accurate.

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

Anonymous · October 17, 2017

Serial Number 19078069 was reported as inaccurate.

Note: This watch is 23 jewels ... not 21 jewels
Curator Response: Thanks for the report. If possible, please upload an image of the movement to your collection so we can take a closer look.
Changes since this report was submitted:
Plate changed from 3/4 to Bridge

Anonymous · July 4, 2017

Serial Number 19078396 was reported as accurate.

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

Anonymous · March 19, 2017

Serial Number 19078174 was reported as accurate.

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

Anonymous · March 5, 2017

Serial Number 19078174 was reported as accurate.

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

MichaelB 150 · March 6, 2014

Serial Number 19078500 was reported as accurate.

Changes since this report was submitted:
Plate changed from 3/4 to Bridge
Waltham Grade No. 645 Pocket Watch