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 Fig. 1 | Langendorf 1243 Features manual-wind alarm sweep second Data 12.5''', Dm= 28.0mm H= 5.5mm 17 jewels f = 18000 A/h power reserve 40h alarm 12s Balance staff U1469 Stem W1199 Mainspring / battery Zf1052, 1.40 x 9.5 x 0.12 x 270mm Hands 1.40 x 0.90mm Comments about the data | Remarks indicator aperture for alarm at 12h operating completely with crown generations: 1241: stem disengaged by screw 1243: stem disengaged by button 1244: minor modification of winding gear and train bridge Operating Instruction Winding watch and alarm: The movement has separate barrels for watch and alarm. They are wound as follows, when the crown is pushed in: Watch: turn crown in 6h direction. Alarm: turn crown in 12h direction. Attention: A resistance in either direction indicates that the corresponding barrel is fully wound. In this case continue winding only in the other direction. Set time: Pull crown completely and turn it in 6h direction. Set alarm: Pull crown half out and turn it in 12h direction. Alarm on: Turn crown a bit in 12h direction, until a colored spot appears in the indicator aperture. Alarm off: Turn crown a bit in 6h direction, until the colored spot in the indicator aperture disappears. Example, year: signature; shock device ca. 1950: Lanco Watch Inc, Swiss Made, Swiss, 17 Jewels © S. Ruchti 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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