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: 1859 Question Mark
Run Quantity: 50 Question Mark
Grade/Model Run: 2 of 2 Question Mark
Grade/Model Total Production: 60 Question Mark
Size: 20s Question Mark
Jewels: 19j Question Mark
Jewel Material: Ruby Question Mark
Jewel Setting: Gold Settings (Screw-Set) Question Mark
Movement Finish: Gilt Question Mark
Movement Setting: Key Question Mark
Plate: 3/4 Plate Question Mark
Adjusted: Yes Question Mark
Adjusted to Temperature: Yes Question Mark
U.S. Patents: 30772 Question Mark
Movement Markings: Nashua Watch Co.
Nashua, N.H.
Case: Various Question Mark
Run ID: 3.G2.20S3.201859M3.U3.K2.19J2 Question Mark
Database Version: v52.642 Question Mark
Advanced Metrics
PWDB Absolute Rarity Index:
Scoped for Grade/Size/Model/Configuration
0.18 Question Mark
PWDB Relative Rarity Index:
Rarity within Manufacturer - Scoped for Grade/Size/Model/Configuration
100.00 Question Mark
Share of Production:
Share within Manufacturer - Scoped for Grade/Size/Model/Configuration
42.857% Question Mark
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]

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Verification Reports for this Run

There are currently no verifications for this range.