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 Fig. 1  Fig. 2 | Landeron 254 Features manual-wind chronograph, 60s, 30/45min, cam switched sub second Data 14''', Dm= 31.8mm H= 6.2mm F= 0.6mm T= 1.6mm 17 jewels f = 18000 A/h power reserve 41h Balance staff U1457 / U3137 balance with/without screws Stem W1158 Mainspring / battery Zf978, 1.35 x 12.0 x 0.14 x 360mm Hands 1.85 x 1.30 x 0.25 / 0.27 x 0.20mm Comments about the data | Remarks 1937-1970, >3.500.000 (all derivatives based on Landeron 48) There were various chrono mechanisms. And as their parts often were interchangable, occasionally series were produced with parts of different calibres. family: 248, 348: 13.75''' 254: 14''' 187: 13.75''', date Example, year: signature; shock device ca. 1960: NO, Swiss; Incabloc (Landeron 248, 13.75''')) 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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