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Seth Thomas Research

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Seth Thomas Research

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  • Home
  • Lookup
  • Models
    • Model 1
    • Model 2
    • Model 3
    • Model 4
    • Model 5
    • Models 6 and 7
    • Models 8 and 9
    • Models 10 and 11
    • Models 12 and 13
    • Model 14
    • Models 15 to 19
    • Model 20
    • Model 21
    • Model 22
    • Model 23
    • Model 24
  • Grades
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Identify The Model

To identify your Seth Thomas pocket watch, enter the serial number of the movement into the Search box below, scroll down to that model, and then click on its page for more information.

Find The Serial Number

The search returns are based entirely on existing verified examples; there is no "Beta Totals, Relative Rarity, or Production Metrics Tree" silliness on this website.

The Model 1

18-Size

Serial Numbers:  1 - 10900 uninterrupted

Production Years:  1885 to 1888

Configuration:  3/4-plate open-face  

Winding / Setting:  Stem / Lever

Comments:  Both slow and quick gear train

Model 1 Page

The Model 2

18-Size

SNs:  25101 - 100000 / 500001 - 559000

Production Years:  1888 to 1900 

Configuration:  3/4-plate hunting

Winding / Setting:  Stem / Key / Lever

Comments:  Includes Henry Molineux grade

Model 2 Page

The Model 3

18-Size

SNs:  10901 - 99400 / 500501 - 517500

Production Years:  1888 to 1898  

Configuration:  3/4-plate open-face

Winding / Setting:  Stem / Lever

Comments:  Includes Molineux & Ball grade

Model 3 Page

The Model 4

18-Size

SNs:  35001 - 92000 / 509801 - 718200

Production Years:  1888 to 1902  

Configuration:  3/4-plate hunting or open-face

Winding / Setting:  Key-wind / key-set

Comments:  Widest SN range of the lower models

Model 4 Page

The Model 5

18-Size

Serial Numbers:  200001 - 352000

Production Years:  1893 to 1913  

Configuration:  Full-plate open-face

Winding / Setting:  Stem / Pendant / Lever

Comments:  Includes Maiden Lane grade

Model 5 Page

The Models 6 and 7

18-Size

Model 6

  Serial Numbers:  515301 - 646000

  Production Years:  1896 to 1904

  Configuration:  3/4-plate open-face

  Winding / Setting:  Stem / Lever

  Comments:  Known as Old Eagle Series

 

Model 7

  Serial Numbers:  508001 - 648000

  Production Years:  1896 to 1904

  Configuration:  3/4-plate hunting

  Winding / Setting:  Stem / Lever

  Comments:  Known as Old Eagle Series

Models 6 and 7 Page

The Models 8 and 9

18-Size

Model 8

  SNs:  700001 - 851900 / 2500001 - 2593000

  Production Years:  1902 to 1913

  Configuration: 3/4-plate open-face

  Winding / Setting:  Stem / Pendant / Lever

  Comments:  Known as New Eagle Series

 

Model 9

  Serial Numbers:  700101 - 853500

  Production Years:  1902 to 1913

  Configuration:  3/4-plate hunting

  Winding / Setting:  Stem / Lever

  Comments:  Known as New Eagle Series

Models 8 and 9 Page

The Models 10 and 11

18-Size

Model 10

  Serial Numbers:  All examples unmarked

  Production Years:  Unknown

  Configuration:  3/4-plate open-face

  Winding / Setting:  Stem / Pendant / Lever

  Comments:  Known as Old Century Series

 

Model 11

  Serial Numbers:  All examples unmarked

  Production Years:  Unknown

  Configuration:  3/4-plate hunting

  Winding / Setting:  Stem / Lever

  Comments:  Known as Old Century Series

Models 10 and 11 Page

The Models 12 and 13

18-Size

Model 12

  SNs:  1000001 - 1301000 / 4068001 - 4069000

  Production Years:  1904 to 1913

  Configuration:  3/4-plate open-face

  Winding / Setting:  Stem / Pendant / Lever

  Comments:  Known as New Century Series

 

Model 13

  Serial Numbers:  1700001 - 1780000

  Production Years:  1904 to 1913

  Configuration:  3/4-plate hunting

  Winding / Setting:  Stem / Lever

  Comments:  Known as New Century Series

Models 12 and 13 Page

The Model 14

6-Size

Serial Numbers:  100001 - 166000

Production Years:  1890 to 1910

Configuration:  3/4-plate hunter

Winding / Setting:  Stem / Lever

Comments:  Only model with male stem.

Model 14 Page

The Models 15 to 19

6-Size

Serial Numbers:

   Model 15:  128001 - 160000

   Model 16:  160001 - 420000

   Model 17:  420001 - 950000

   Model 18:  950001 - 4017000

   Model 19:  3000001 - 3005000

Production Years:  1904 to 1913

Configuration:  3/4-plate hunter

Winding / Setting:  Stem / Lever

Comments:  Eagle Series / Includes 12 x 6 movements

Models 15 to 19 Page

The Model 20

0-Size

Serial Numbers:  2000001 - 2005000

Production Years:  1908 to 1913

Configuration:  3/4-plate hunting

Winding / Setting:  Stem / Pendant

Comments:  Includes wristwatch models

Model 20 Page

The Model 21

16-Size

SNs:  1304501 - 1360000 / 2593001 - 2600000

Production Years:  1913 to 1915 

Configuration:  3/4-plate open-face

Winding / Setting:  Stem / Pendant

Comments:  Includes Centennial grade

Model 21 Page

The Model 22

12-Size

Model 22

  Serial Numbers:  3258701 - 3298000

  Production Years:  1913 to 1915

  Configuration: 3/4-plate open-face

  Winding / Setting:  Stem / Pendant 

  Comments:  Includes Centennial grade

Model 22 Page

The Model 23

12-Size

Model 23

  Serial Numbers:  3500001 - 3505000   

  Production Years:  1913 only

  Configuration: Bridge model open-face

  Winding / Setting:  Stem / Pendant 

  Comments:  Four grades including 17-jewel Adjusted

Model 23 Page

The Model 24

4-Size

Serial Numbers:  3050001 - 3103000

Production Years:  1913 to 1915 

Configuration:  3/4-plate open-face

Winding / Setting:  Stem / Pendant

Comments:   Includes Centennial grade 

Model 24 Page

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The rarest regular-production two-tone pattern of all, made in one block of seventy - and then never again.

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