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Mobilaero

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 Arlington, MA

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Hamilton 928
Serial #18171

Image of Hamilton 928 #18171 Movement
Movement Image
Image of Hamilton 928 #18171 Dial
Dial Image
Image of Hamilton 928 #18171 Case
Case Image
Image of Hamilton 928 #18171 Case Markings
Case Markings Image
Manufacturer Hamilton
Grade 928
Serial Number 18171
Size 18s
Model 1
Jewel Count 15j
Setting Lever
Finish Nickel
Case Material Goldfilled
Case Manufacturer Unsure of Manufacturer
Case Grade/Model MONITOR
Case Serial # 7527479
Case Details The inside of the case back is is marked "Warranted 25 Years" and below this "MONITOR" (inside cartouche)
and the serial number. It seems more than one case maker used the name monitor. Some mentioned are Brooklyn W.Cs. Co., Ill. W.Cs. Co., and Fahy's W.Cs.Co.
Dial Material Glass Enamel
Dial Type Single-Sunk
Dial Style Roman
Dial Signing Name A.L. Bonewell
Dial Details
Movement Markings "A.L. Bonewell, Creston, O." stamped on the train bridge. "Safety Barrel" and serial no. stamped on the barrel bridge.
#18171 is from the first run of 200 (18000-18200) of the 928. Note the simple Bosley (whip) regulator. Later 928's ( after # 18500) were fitted with a simple Goldthwaite type (no micro screw adjusting, just push the longer indicator).
Contributed to the database by Mobilaero on September 15, 2018.
This collection record was most recently edited on February 19, 2024.