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| Index | Timepiece Archive, Categories | Archive: Watch Movements | Timepiece Market |
 Fig. 1  Fig. 2 | ZentRa 50A (Felsa 107) Features manual wind sub second Data 8.75''', Dm= 19.45mm, Do= 19.75mm H= 3.3mm F= 0.5mm T= 1.6mm 15 jewels f = 18000 A/h power reserve 33h Balance staff U36 Stem W137 Mainspring / battery Zf662, 1.20 x 7.5 x 0.09 x 220mm Hands 1.20 x 0.70 / 0.20mm Comments about the data | Remarks bimetallic screw balance Example, year: signature; shock device ca. 1925: ZentRa 50A 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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