Pocket Watch Database

From the American Horology Archive:
Seth Thomas Grade 57 Pocket Watch

Seth Thomas Watch Co.

Grade: 57

Manufacturer: Seth Thomas
Manufacturer Location: Thomaston, Connecticut
Movement Serial Number: 305060
Grade: 57
Model: 5
Estimated Production Year: 1909
Size: 18s
Jewels: 7j
Movement Configuration: Openface
Movement Finish: Nickel
Movement Setting: Pendant
Plate: Full Plate
Regulator: Plain
Hairspring: Breguet
Adjusted: No
Railroad Grade: No
Movement Markings: Seth Thomas
Thomaston, Conn.
Safety Pinion
Case: Various
Registry Population: 9 (0.45%)
Database Version: v49.391

Population Registry for This Run

Image Serial Number Run Position Primary Identification Method Discovery Date
1 305060 #60 Collection August 25, 2020
2 305084 #84 Observation April 02, 2014
3 305139 #139 Marketplace May 31, 2016
4 305212 #212 Marketplace November 11, 2018
5 305257 #257 Observation April 13, 2014
6 305295 #295 Collection August 17, 2022
7 305878 #878 Observation July 23, 2021
8 306006 #1006 Marketplace October 10, 2017
9 306647 #1647 Marketplace October 22, 2015
Standard Deviation of Known Examples: 547.13 (Expected: 577.49, Δ30.36/1.52%)

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Data Verification Reports

Anonymous ยท March 27, 2015

Serial Number 306976 was reported as inaccurate.

No further details were submitted with the report.
Changes since this report was submitted:
Grade changed from Unknown to 57
Movement Finish changed from Gilt or Nickel to Nickel
Movement Setting changed from Lever or Pendant to Pendant
Seth Thomas Grade 57 Pocket Watch