Bulova Spaceview 2141, signed front: ”Bulova, Accutron”, back: “Bulova, Patented, Stainless Steel back, Waterproof, 1-818693, M9”, inside: “Swiss Made, 2141, Bulova, M6, Brevet-Patent”, Caliber 2141, Manufacturing date 1969 (M9), screw-on case back, clip lever on the back to adjust the time.
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