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Citizen 1131
Ligne: 12.25'''
Jewels: 17/19/21
Power Reserve: 38 hrs
Frequency: 18000 vph
Type: Automatic
Period used: ~1965
Diameter: 28.1 mm
Height: 5.45 mm
Hands: 1.50 x 0.90 x 0.15 mm
The Citizen 1131 watch movement features a ball-bearing rotor and a sophisticated excenter self-winding mechanism with just one gear stage. It utilizes a stem mechanism without a setting-lever spring and incorporates the Diafix combined settings for the escapement wheel. The movement functions include automatic winding, no manual winding, a sweep seconds hand, and shock protection. It was primarily used during the approximate period of 1965.
The Citizen 1131 features the following functions:
- Automatic Winding
- No Manual Wind
- Shock Protection
- Sweep second
Mainspring Listing
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Incabloc Part Listing
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KIF Part Listing
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Documents
Parts Listing
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