A Triad Digital watch with handwind jump-hour Caliber with date, using an Ilona handwind caliber. Instead of hands three discs,date, hour- and minute-disc turn around. The time is then read out in two windows on the dial, in the right window is the date. Signed front: ”3T, Triad, Time Computer, 17 Jewels, Swiss Made”, back: “Swiss Made, Base Metal, 2918”, inside: “Ilona Ltd., Seventeen Jewels, Unadjusted”
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