Pocket Watch Database


From the American Horology Archive:

American Waltham Watch Co.

Grade: Crescent Garden

Manufacturer: Waltham Question Mark
Manufacturer Location: Waltham, Massachusetts Question Mark
Movement Serial Number: 989915 Question Mark
Grade: Crescent Garden Question Mark
Model: 1870 Question Mark
Estimated Production Date: June 1877 - August 1877 Question Mark
Run Quantity: 70 Question Mark
Grade/Model Run: 124 of 178 Question Mark
Grade/Model Total Production: 19,287 Question Mark
Size: 14s Question Mark
Jewels: 7j Question Mark
Movement Configuration: Adaptable Question Mark
Movement Finish: Gilt Question Mark
Movement Setting: Key Question Mark
Plate: 3/4 Plate Question Mark
Balance Type: Solid Question Mark
Balance Material: Gold Question Mark
Adjusted: No Question Mark
Railroad Grade: No Question Mark
Case: Various Question Mark
Run ID: 6990.G144.14S335.141870M196.O6540.K6530.7J1140 Question Mark
Data Research: c.1900 Waltham Factory Ledger Book 1 [NAWCC]
c.1900 Waltham Factory Ledgers [Ehrhardt Transcription]
1954 Waltham "Gray Book" List
NAWCC Waltham Serial Digest
Question Mark
Database Version: v52.450 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
55.06 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
50.10 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.055% Question Mark
Registry Population:
Scoped for This Run Only
1 (1.43%) Question Mark
Research Note: Waltham Serial Ledgers designate this run as "Cres. Graden" (Crescent Garden) and 14-Size 3/4 Plate. The "Gray Book" serial lists records the run as 14-Size "F.P." (Full Plate). The full plate model would correlate to the Model 1876. However, observations have been made that confirm these subsequent Crescent Garden runs are indeed 3/4 Plate and should be properly designated as Model 1870 instead of Model 1876.
#989915: Verified as consistent with 3/4 Model 1870 [eBay #185798202264].

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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 21, 2023

Serial Number 989915 was reported as accurate.

Anonymous · March 4, 2023

Serial Number 989915 was reported as inaccurate.

Note: This is not a model 1876 whatever it is. Perhaps a
1874? Ebay item 185798202264 if you want to check
it out.
Curator Response: Thanks for the report. The database has been updated accordingly.
Changes since this report was submitted:
Factory Model changed from 1876 to 1870