Background
I have been collecting 12 size Ariston's for over 30 years. As the Marshall Fields private label Ariston brand (made by Illinois) is sought more than most other Illinois contract watches, I had always believed that all of the 12 size Ariston variants and grades were well established. But in the past two years I purchased the following 12 size Ariston's which had not been reported.
21j Grade 509 variant
17j Grade 273 (previously unknown)
19j Grade 273 Hunter (previously unknown)
Recent Acquisition Grade 255
Several days ago, I acquired a 12size Grade 255 17j open-faced Ariston movement with the proper dial (see pictures). Until now, no Grade 255 Ariston's have been reported.
About 50,000 grade 255 were produced from 1904 to 1921 in 15j, 17j and 19j with all but 250 being 17j.
The below table shows the 12 size Ariston's sold from about 1905 to 1912. The bolded movements in the table are my recent acquisitions.
I have been collecting 12 size Ariston's for over 30 years. As the Marshall Fields private label Ariston brand (made by Illinois) is sought more than most other Illinois contract watches, I had always believed that all of the 12 size Ariston variants and grades were well established. But in the past two years I purchased the following 12 size Ariston's which had not been reported.
21j Grade 509 variant
17j Grade 273 (previously unknown)
19j Grade 273 Hunter (previously unknown)
Recent Acquisition Grade 255
Several days ago, I acquired a 12size Grade 255 17j open-faced Ariston movement with the proper dial (see pictures). Until now, no Grade 255 Ariston's have been reported.


About 50,000 grade 255 were produced from 1904 to 1921 in 15j, 17j and 19j with all but 250 being 17j.
The below table shows the 12 size Ariston's sold from about 1905 to 1912. The bolded movements in the table are my recent acquisitions.
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With my more recent Ariston acquisitions it now seems highly likely that for Grades 255,273 & 299 that Marshal Fields & Co. sold all of the different jeweled versions (17j to 23j) of these grades The remaining question is whether a 17j Grade 255 Hunter also exists. Why do I keep getting pulled back in? | |||||||||||