Hamilton 18s 21j Railroad Grade 940 Two-Tone Movement
c. 1906
Winds & Ticks
balance staff issue, when rotated around to a specific position, watch stops ticking
Sale includes protective clear plastic movement holder
Hamilton 18s 21j Railroad Grade 940 Two-Tone Movement
04-2115
Grade: 940
Manufacturer: Hamilton
Manufacturer Location: Lancaster, Pennsylvania
Movement Serial Number: 509813
Grade: 940
Model: 1
To Finishing Dept: Apr 14, 1906
Run Quantity: 900
Total Production: 210,596
Size: 18s
Jewels: 21j
Jewel Material: Ruby
Jewel Setting: Screw-Set
Movement Configuration: Openface
Movement Finish: Two-Tone
Finish Pattern: Damaskeened
Movement Inlay Color: Gilt
Movement Setting: Lever
Plate: Full Plate
Barrel: Going
Regulator: Micrometer
Hairspring: Breguet
Standard Dial Type: Double-Sunk
Adjusted: Yes
Adjusted to Position: Yes
Adjusted # of Positions: 5
Adjusted to Temperature: Yes
Adjusted to Isochronism: Yes
Railroad Grade: Yes
U.S. Patents: 832672, 427072
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