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. Question Mark
Manufacturer Location: Auburdale, Massachusetts Question Mark
Movement Serial Number: 18 Question Mark
Grade: Experimental Question Mark
Estimated Production Year: Login to View for Free Question Mark
Run Quantity: Login to View for Free Question Mark
Railroad Grade: Login to View for Free Question Mark
Case: Various Question Mark
Database Version: v52.645 Question Mark
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Registry Population:
Scoped for This Run Only
5 (25.00%) Question Mark
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.
3 Additional Member-Only Data Points Available

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Estimated Production Year, Run Quantity, Railroad Grade Designation

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