Pocket Watch Database

We noticed that you entered a relatively short serial number.
"18" could possibly indicate the grade of the watch and not the serial number of your movement. Serial numbers are usually more than a few digits.
From the American Horology Archive:

Auburndale Watch Co.

Grade: Experimental

Manufacturer: Auburndale Watch Co.
Manufacturer Location: Auburdale, Massachusetts
Movement Serial Number: 18
Grade: Experimental
Estimated Production Year: 1877
Run Quantity: 20
Railroad Grade: No
Case: Various
Database Version: v52.270
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
0.06
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
5.17
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
0.496%
Registry Population: 5 (25.00%)
Research Note: Surviving examples marked with serial numbers under 20 have been observed with unique features, unfinished plates, and other traits that indicate this block was reserved for experimental or prototype movements.

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