Pocket Watch Database

From the American Horology Archive:
Waltham Grade No. 635 Pocket Watch

American Waltham Watch Co.

Grade: No. 635

Manufacturer: Waltham Question Mark
Manufacturer Location: Waltham, Massachusetts Question Mark
Movement Serial Number: 18101380 Question Mark
Grade: No. 635 Question Mark
Model: 1908 Question Mark
Estimated Production Year: 1911 Question Mark
Run Quantity: 500 Question Mark
Grade/Model Run: 15 of 45 Question Mark
Grade/Model Total Production: 33,300 Question Mark
Size: 16s Question Mark
Jewels: 17j Question Mark
Jewel Setting: Screw-Set Question Mark
Movement Configuration: Openface Question Mark
Movement Finish: Nickel Question Mark
Movement Setting: Pendant Question Mark
Plate: 3/4 Plate Question Mark
Regulator: Micrometer Question Mark
Hairspring: Breguet Question Mark
Pallet Jewel Material: Sapphire Question Mark
Adjusted: Yes Question Mark
Adjusted to Temperature: Yes Question Mark
Railroad Grade: No Question Mark
Case: Various Question Mark
Run ID: 21741.G16.16S2759.161908M334.O13507.P6996.17J2054 Question Mark
Data Research: 1954 Waltham "Gray Book" List
NAWCC Waltham Serial Digest
Question Mark
Database Version: v52.470 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
58.93 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
53.63 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.059% Question Mark
Registry Population:
Scoped for This Run Only
5 (1.00%) Question Mark
$ Estimated Value (12 Month Change): -0.94% Analyzing 148 Sales Question Mark

Help Us Help Others By Improving the Database:

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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.


mfeinberg 1 · November 25, 2018

Serial Number 18101403 was reported as accurate.

Anonymous · July 31, 2015

Serial Number 18101051 was reported as accurate.

Anonymous · October 26, 2014

Serial Number 18101075 was reported as accurate.

Anonymous · July 24, 2013

Serial Number 18101439 was reported as accurate.

Waltham Grade No. 635 Pocket Watch