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Enter the serial number from the pocket watch movement below. Do not use the case number. Tips for looking up your watch

How to Find Info About Your Pocket Watch

The Pocket Watch Database has compiled data covering the major American pocket watch manufacturers and created an easy way to find information using the serial number on the watch movement. Here are a few tips to find information about your pocket watch:

  1. Always input the serial number from the pocket watch movement (the "mechanism" of the watch).
  2. Never use the serial number from the case or any other part.
  3. Always select the correct manufacturer, which is usually stamped on the watch movement or dial.
  4. If the manufacturer is not listed on the site, you may have a "private label" watch or it may not be American-made.
  5. If the serial number includes a letter, enter it along with the number when using the lookup feature.
  6. Many pocket watch case backs screw off. Others may require a dull wide blade to pry or pop the cover. Be careful not to scratch or damage the movement.
  7. Consider uploading images of your watch by creating a collection account on the website. This is compeltely free and assists in promoting research in American horology.
  8. Understand that many companies did not keep accurate or complete records. As a result, information displayed on this site may have inaccuracies. This is to be expected, and we have included an option to report inaccurate information on the result pages so the database can be continually improved.
Pocket Watch Serial Number Lookup - Hamilton, South Bend, Illinois, Rockford, Waltham & Elgin Pocket Watches
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Rockford Grade 205

The Grade 205 is a 17j Openface watch maufacturered by Rockford, marked with the name "Winnebago." The size 18s, Model 9 movement features a damaskeened nickel finish and is adjusted to 5 positions, isochronism and temperature. During the time the watch was manufactured, it would have qualified for railroad service and is considered to be railroad grade. Each movement was fitted at the factory with a double-sunk glass enamel dial.

Grade 205 Movement Characteristics

  • Size18s
  • Jewels17j
  • ConfigurationOpenface
  • FinishNickel
  • Model9
  • SettingLever
  • AdjustedYes
  • Railroad GradeYes

Grade 205 Production Info

  • Total Production4,200
  • Number of Runs5
  • Years1903-1908
  • First Serial624,001
  • Last Serial786,000
  • Largest Run1,000
  • Smallest Run200
  • Most Common Run1,000

Research Notes:

The Rockford Grade 205 is generally referred to as the Size 18 Openface "Winnebago" grade. With an estimated production of 4,200 in five distinct runs, the Grade 205 was more popular as the hunting Grade 200 counterpart, likely due to stricter railroad service requirements disqualifying hunting movements. Also available in two size 16 grades, the "Winnebago" movements are named after the Illinois county in which Rockford resides. Early Grade 205 movements are marked with "Adjusted" and "RG," indicating "Railroad Grade," while later movements are marked "Adjusted Five Positions" without the "RG" insignia. The elegant nickel damaskeening and polished steel partes compliments the attractiveness of the gold inlay lettering. According to catalog descriptions, the "Winnebago" was fitted with a "double-sunk glass enamel dial" featuring "red marginal figures."

The c.1907 Rockford Watch Catalog offered the 18 Size Winnebago for $33.00 in either open face (Grade 205) and hunting (Grade 200) configurations. The Winnebago movements were still being offered in the company catalogs as late as 1913.

No observations have been recorded within the last designated run [785,001-786,000]. If Rockford discontinued the Grade 205 Winnebago prior to fulfilling this serial block, actual production would be less than 4,200.

Associated Grades:

200