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| Index | Timepiece Archive, Categories | Archive: Watch Movements | Timepiece Market |
 Fig. 1  Fig. 2 | Durowe 542 Features manual wind sweep second Data 11.5''', Dm= 25.6mm, Do= 26.0mm H= 3.65mm F= 1.0mm T= 1.9mm 17/21 jewels f = 18000 A/h power reserve 34h Balance staff U2243 Stem W2404 / W2875 thread 1.1mm/0.9mm Mainspring / battery Zf689, 1.20 x 9.5 x 0.12 x 270mm Hands 1.30 x 0.80 x 0.22mm Comments about the data | Remarks 1956- different mainsprings in 540, 542 family/generations: 10.5''': 440, 445: manual wind 443: manual wind, small date 11.5''': 540, 542: manual wind 570: automatic 580: automatic, small date 585: manual wind, normal date 590: automatic, normal date suffix -1: ring balance, no regulator pointer Example, year: signature; shock device ca. 1960: Laco, 17 Jewels - 2; Duro-Swing 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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