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| Index | Timepiece Archive, Categories | Archive: Watch Movements | Timepiece Market |
 Fig. 1  Fig. 2  Fig. 3  Fig. 4  Fig. 5 | Cyma 480 Features automatic sweep second Data 12.5''', Dm= 28.0mm, Do= 28.5mm H= 5.1mm F= 1.3mm T= 1.8mm 27 jewels f = 18000 A/h power reserve 42h Balance staff U2624 Stem W2652 Mainspring / battery 1.40 x 10.5 x 0.11mm Hands 1.30 x 0.85 x 0.22mm Comments about the data | Remarks 1953-1955 patented double-excenter winding with jewelled rollers (for low height) jewel-bearing rotor An intermediate wheel between minute pinion and the rest of the train allows big balance and low profile without reducing the sturdiness (cf. Cyma 10 Pleiade). Moreover this layout allows to place the seconds wheel either in the center or for a sub second, without further modifications (details cf. Cyma 488.2). early samples pink gold plated (Fig. 4) late samples with new rotor lock and ring balance (Fig. 5) family/generations: 480: automatic, sweep second 481: automatic, sub second 482: automatic, sub second, date 484: manual wind, sub second 485: automatic, sweep second, date 486: manual wind, sweep second 487: manual wind, sub second, date 488: manual wind, sweep second, date suffix .1: automatic with new rotor lock suffix .2: excenter regulator for stud carrier Example, year: signature; shock device 1-3) 1954: 104058, Cyma, R.480, Patended, Tavannes Switzerland, 27 Jewels; Cymaflex-I 4) 1953: 24284, Cyma, R.480, Patended, Tavannes Switzerland, 27 Jewels; Cymaflex-I 5) 1955: 125282, Cyma, R.480, Patended, Tavannes Switzerland, 27 Jewels; Cymaflex-I 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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