Most visitors online was 1990 , on 7 Feb 2022
Joe,Just saw this thread and since I may not get back on in time for the later ones, here are my 6. Al Htg, except the Gr10. The SN is in the file name, as is the Grade, which I got from Greg's book. Joe
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Very nice examples indeed.Grade 4-Htg (#40024):
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Grade 8-Htg (#80530), damaskeened nickel:
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Grade 8-Htg (#81450), checkerboard two-tone:
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Grade 8-Htg (#82092), checkerboard two-tone with "side bars":
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Grade 8-Htg (#81155), two-tone flower-n-wheel pattern:
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Beautiful movementGrade 10-Htg (#100210), rare gilt screw variant.
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This encyclopedia link goes into gory detail on the "15 Ruby Jewels" grades (nos. 9 and 10, both OF and Htg): https://mb.nawcc.org/wiki/Encyclope...ocket-Watches/Auroras-15-Ruby-Jewel-Movements
This watch has been shown previously.Another series of grade numbers for Aurora are 42 through 53. These were used for the Aurora movements "Made Expressly for the U. S. J. Guild".
A grade 73, one of 20 produced. It is a private label new model for the Minneapolis Watch Co.Probably the toughest set of Aurora grade nos. to complete would be the "New Model" ones, viz. 61 through 77, 79, 81 and 83. The vast majority of these are private labels
The 24 hr dial is an interesting configuration with 13-24 being on the outer perimeter.Grade no. 63 (#116017, ETP for grade = 370, scarce Aurora Watch Co. variant with an ETP for variant = 50):
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Grade no. 67 (#120602, ETP for grade = 200, Charles Stark variant with an ETP for variant = 190):
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Grade no. 77 (#55849, ETP for grade = 150, Charles Stark variant with an ETP for variant = 90), railroad grade:
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Most of the Charles Stark movements have dual track 24 hour dials, e. g. like this one on #55849:
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Grade no. 68 (#140059, ETP for grade = 435, Charles Stark variant with an ETP for variant = 345, marked "Adjusted"), railroad grade:
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Uncommon 12 hour Charles Stark dial (on mvt #140059):
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Richard,Here is another Charles Stark. Based on the serial no. of Greg's, I assume it to be a grade #77 (but may be a grade #73). It is open face, pendant set and is housed in a heavy Dueber Newport coin case. I like the fact Stark offered his movements in different weight cases (see Greg's post of the catalog page).
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James,I recently acquired an Aurora, due to my curiosity about it being somewhat rare, and because it's origin is near to my hometown (this Midwest area is sort of the theme of my collection).
Thanks to Greg for his wealth of information about this little-known watch. I read your article "Variants Of The 18-size 7-jewel Aurora Movements" to try to identify my example. It seems to closely match Figure 3, which represents stem-wind, hunting, lever set, and not marked "7 Jewels", which would designate it as Grade 1-Htg. The only difference I see is that the "Safety Pinion" marking is not on the barrel bridge, but rather under the regulator. Anyway, I recorded it in the database that way. I figure if I made a mistake, the experts here will find it.
Mine is running, by the way, and is in fairly good shape. I had to make a sidewinder out of it because I don't have a hunter case. I'm considering making it a project to clean it myself. We'll see.
Thanks for the information.
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