Longines 18D

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18”’ | Hand Wind | Swiss Lever | Small Seconds |

Remarks:

  • Winding pinion mounted directly on the winding stem in the case
  • Click mechanism on the underside of the barrel bridge
  • Lateral anchor with hidden pallets
  • According to the above-mentioned book, the movement was built from 1887, but the Swiss patent 3846 stamped on the movement only dates from 1891!
    However, it was probably manufactured around 1915, as the dial of the corresponding pocket watch has a red twelve, which was very popular from around 1915-25.
  • CHASSERAL (on the movement and dial) was a Longines brand whose watches were fitted with the cheaper Longines movements.
  • Savonnette (hunter) version of this Lépine (open face) caliber: Longines 18SD

 

  • Listing ID: 1628
  • Manufacturer / Brand: Longines
  • Caliber: 18D
  • Size in French Lignes: 18'''
  • Size range mm largest diameter: > 40 mm
  • Shape: Round
  • Winding: Manual (Crown)
  • Hands Setting: Crown
  • Seconds Hand: Small seconds
  • Escapement: Lever (Swiss, English, Glashütte)
  • Date, Day, Month...: None
  • Jewels: 11
  • Balance Position: Left (240 - 360°)
  • Shock Protection: None
  • Beats per hour: 18,000
  • Balance Type: Monometallic screw balance
  • Power Reserve: Unknown
  • Production Period: Probably around 1915
  • Identification: Listed in the book by Patrick Linder: At the Heart of an Industrial Vocation, Longines watch movements (1832 - 2007).
  • External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-44#post-5720065
  • Country: Switzerland
  • Contributor ©: Uhrforum.de member Badener (Andreas Kelz)

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