Felsa 311

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17”’ | Hand Wind | Swiss Lever | Small Seconds |
Remarks:

  • The setting lever spring on the movement shown is broken off
  • Movement family:
    • 140, 154, 278, 310: 16”’, max. height 4.35 mm, different bridge shapes
    • 150, 273, 322: 16”’, max. height 3.67 mm, bridge shapes similar to 140, 278 310
    • 173, 311: 17”’, max. height 4.35 mm, other bridge shapes
    • 174, 323: 17”’, max. height 3.67 mm, bridge shapes similar to 173, 311
    • 323-1: as 323, plus indirect sweeping second
  • Listing ID: 150
  • Manufacturer / Brand: Felsa
  • Caliber: 311
  • Size: 17'''
  • Shape: Round
  • Winding: Manual (Crown)
  • Hand Setting: Crown
  • Seconds Hand: Small seconds
  • Escapement: Lever (Swiss, English, Glashütte)
  • Date & Day: None
  • Jewels: 15
  • Setting Lever Screw/Pin Position: Right
  • Balance Position: Right (0 - 120°)
  • Shock Protection: None
  • Beats per hour: 18,000
  • Balance Type: Bimetallic screw balance
  • Power Reserve: Unknown
  • Production Period: Unknown, probably around 1940
  • Identification: Dial side marked with the Felsa logo. Listed in the 1942 Ebauches SA catalog
  • External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-60#post-8569873
  • Country: Switzerland
  • Contributor ©: Uhrforum.de member Badener (Andreas Kelz)

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