Pocket Watch Database

We noticed that you entered a relatively short serial number.
"1055" 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:

Nashua Watch Co.

Grade: 19J

Manufacturer: Nashua Watch Co. Question Mark
Manufacturer Location: Nashua, New Hampshire Question Mark
Movement Serial Number: 1055 Question Mark
Grade: 19J Question Mark
Model: 1859 Question Mark
Estimated Production Year: Members Only Data Question Mark
Run Quantity: Members Only Data Question Mark
Grade/Model Run: Members Only Data Question Mark
Grade/Model Total Production: Members Only Data Question Mark
Size: 20s Question Mark
Jewels: 19j Question Mark
Jewel Material: Members Only Data Question Mark
Jewel Setting: Members Only Data Question Mark
Movement Finish: Gilt Question Mark
Movement Setting: Key Question Mark
Plate: 3/4 Plate Question Mark
Adjusted: Members Only Data Question Mark
Adjusted to Temperature: Members Only Data Question Mark
U.S. Patents: Members Only Data Question Mark
Movement Markings: Members Only Data
Case: Various Question Mark
Run ID: 3.G2.20S3.201859M3.U3.K2.19J2 Question Mark
Database Version: v52.642 Question Mark
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Registry Population:
Scoped for This Run Only
3 (6.00%) Question Mark
Research Note: #1055: Verified with assembled serial #155.
#1090: Expert-Verified with assembled serial #190 [Clint Geller].

The following assembly serial numbers have been observed under the dials of movements started at Nashua and finished at the Waltham factory:

#102 [Likely Correlates to Nashua #1002, Waltham #50028] [Source: Tom McIntyre AWCo.org Archive]
#119 [Likely Correlates to Nashua #1019, Waltham #50091] [Source: JH]
#132 [Likely Correlates to Nashua #1032, Waltham #50019] [Source: JH]
#135 [Likely Correlates to Nashua #1035, Waltham #50064] [Source: JH]
#163 [Likely Correlates to Nashua #1063, Waltham #50042] [Source: JH]

#??? [Description Suggests Correlation to Nashua #1153 (Though, possibly #1053 based on other observations), Waltham #50014] [Source: Bonhams]
10 Additional Member-Only Data Points Available

The following information is unlocked with a free account:

Estimated Production Year, Run Quantity, Grade/Model Run, Grade/Model Total Production, Jewel Material, Jewel Setting, Adjustments, Temperature Adjustments, U.S. Patents, Movement Markings

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