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| Index | Timepiece Archive, Categories | Archive: Watch Movements | Timepiece Market |
 Fig. 1  Fig. 2  Fig. 3  Fig. 4  Fig. 5 | ETA 1256 Features automatic sweep second option: power reserve display 40h Data 11.5''', Dm= 25.6mm, Do= 26.0mm H= 5.85 / 6.9mm F= 1.5 / 2.55mm T= 2.0 / 3.05mm (without / with power reserve display) 17/21/25 jewels f = 18000 A/h power reserve 40h Balance staff U1397/U3098 balance with/without screws Stem W2767 (W1161) Occasionally for manual wind and automatic different stems are listed, but both are equal. Mainspring / battery Zf1211, 1.50 x 9.0 x 0.10 x 290mm Hands 1.50 x 0.90 x 0.20mm Comments about the data | Remarks 1950-1954, 11760102 (1256...1259) first automatic from ETA (Etarotor) rotor-bearing clearance adjustable option power reserve display (Indimatic) differences not known between 1256, 1285, 1286 family/generations: manual wind: 1080: 10.5''', H= 4.15mm 1081: 11.5''', H= 4.15mm 1093: 11.5''', date 1152: 10.5''', H= 4.5mm 1153: 11.5''', H= 4.5mm automatic: 1256: - 1258: date automatic, minor modifications: 1257: - 1259: date Example, year: signature; shock device 1-2) ca. 1950: Swiss Made, 21 Jewels; Incabloc 3-5) ca. 1950: MOG, M.A. Mead & Co, Indimatic, Swiss, 17 Jewels; Incabloc Not for Sale! The movements presented in this caliber finder are not for sale. This is only a data sheet for identification and evaluation of the movement calibre, as well as for approximate dating. |
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