Early 18s Rockford grades and Models

Greg Frauenhoff

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In another thread Bila has requested serial number data on the pre-255,000 Rockford mvts. I thought it might be of interest to examine when various grades and models of the mvts in this range were introduced.

Grades c. 1875 from product line brochure, all are 18 size, full plate, gilt, both key and stem-winders are available (models 1 and 2).
19 Ruby Jewels
15 Ruby Jewels
15 Jewels Adjusted
15 Jewels (jewels in settings)
15 Jewels-Plain (jewels set directly into the plate)
11 Jewels (half-jeweled, i. e. 4 visible in top plate)
9 Jewels

Grades in 1/15/80 product line brochure
19 Ruby Jewels
15 Ruby Jewels
15 Jewels Adjusted
15 Jewels (jewels in settings)
15 Jewels-Plain (jewels set directly into the plate)
11 Jewels-Extra (jewels in pairs)
11 Jewels (half-jeweled, i. e. 4 visible in top plate)
9 Jewels
7 Jewels ("Our new, cheap, plain-jeweled movement."

Grades in 9/15/80 product line brochure
19 Ruby Jewels
15 Ruby Jewels
15 Jewels Adjusted
15 Jewels (jewels in settings)
15 Jewels-Plain (jewels set directly into the plate)
11 Jewels-Extra (jewels in pairs)
11 Jewels (half-jeweled, i. e. 4 visible in top plate)
9 Jewels
7 Jewels ("Our new, cheap, plain-jeweled movement."

Grades in 4/19/82 product line brochure
15 Ruby Jewels, nickel
15 Ruby Jewels, gilt
15 Jewels Adjusted
Three-Quarter Plate (model 5)
15 Jewels (jewels in settings)
11 Jewels-Nickel (4 holes jeweled in settings in top plate)
11 Jewels-Extra (jeweled in pairs)
11 Jewels (half-jeweled, i. e. 4 visible in top plate)
9 Jewels
7 Jewels ("Our new, cheap, plain-jeweled movement."

July & Aug. 1885: 8-size ladies movement is on the market.

Sept. 1885 it is reported that the model of the new open face 18 size movement is completed by J. W. Hurd. This would be what is later called the model 4.

Oct. 12, 1886, patent for Albert Troller's exposed escapement design is secured. This would be what is later called the model 6.

Apr. 1887 the "New Model" 18-size movement (i. e. model 6) is introduced.
 

Bila

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Jan 22, 2010
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Thanks for posting this Greg, I think Nathan needs to have a look at it as this might save mis-information/reporting happening on watch model types, serial numbers and the like:)

Did you happen to see any advertising for the Ladies 6 Size on when they were introduced?
 

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