Pocket Watch Database

From the American Horology Archive:
Waltham Grade P.S. Bartlett Pocket Watch

American Waltham Watch Co.

Grade: P.S. Bartlett

Manufacturer: Waltham
Manufacturer Location: Waltham, Massachusetts
Movement Serial Number: 42274
Grade: P.S. Bartlett
Model: 1857
Estimated Production Date: December 1862
Run Quantity: 10
Grade/Model Total Production: 293,259
Size: 18s
Jewels: 11j
Movement Configuration: Adaptable
Movement Finish: Gilt
Movement Setting: Key
Plate: Full Plate
Balance Type: Solid
Balance Material: Gold
Adjusted: No
Railroad Grade: No
Data Research: c.1900 Waltham Factory Ledgers
1954 Waltham "Gray Book" List
Case: Various
Registry Population: 1 (10.00%)
Database Version: v49.701

Population Registry for This Run

Image Serial Number Run Position Primary Identification Method Discovery Date
Image Credit: HerbertTrw
42274 #4 Collection January 22, 2022
Standard Deviation of Known Examples: 0.00 (Expected: 3.03, Δ3.03/30.28%)

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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.

HerbertTrw Supporter 77 · January 22, 2022

Serial Number 42274 was reported as inaccurate.

Note: This is unfortunately an Equity model. The number
is the same on the movement and under the dial. I'
m a little confused because the movement looks
more like a Model 1894 in 12S. However, it is
definitely more like a 16S as measured 42.8 mm. I
guess that the numbers of this series do not
correspond to the other Waltham numbering. Again
sory but I didn't know where else to sort the
pocket watch!
Curator Response: Thanks for the report. Unfortuantely, some of the Equity movements are marked with a truncated serial or special serial block that will not correspond to the standard Waltham lookup engine. Hopefully, more reserach efforts can be invested in the Equity grade in the near future.

Bobster 31 · November 20, 2013

Serial Number 42278 was reported as accurate.

Waltham Grade P.S. Bartlett Pocket Watch