Crettiez 18 1/2''' Type 4a-2

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18 1/2”’ | Hand Wind | Swiss Lever | Small Seconds |

Remarks:

  • For detailed information about the different types of Crettiez movement see Crettiez – Watch movements and social riots (watch-movements.eu) and the attached categorization chart.
  • Common bridge for fourth wheel, third wheel and center wheel
  • Ratchet wheel below the barrel bridge
  • Click on the outside of the barrel bridge
  • Setting lever screw to the left of the crown wheel
  • Two hand setting wheels
  • Without cover plate for hand setting wheels
  • Variant of Crettiez type 4a: 4a and 4a-2 only differ in their bridge design

 

  • Listing ID: 10944
  • Manufacturer / Brand: Crettiez
  • Caliber: 18 1/2''' Type 4a-2
  • Size in French Lignes: 18 1/2'''
  • Size range mm largest diameter: > 40 mm
  • Shape: Round
  • Winding: Manual (Crown)
  • Hands Setting: Crown with pin/pusher
  • Seconds Hand: Small seconds
  • Escapement: Lever (Swiss, English, Glashütte)
  • Date, Day, Month...: None
  • Jewels: 16
  • Setting Lever Screw/Pin Position: Left
  • Balance Position: Left (240 - 360°)
  • Shock Protection: None
  • Beats per hour: 18,000
  • Balance Type: Bimetallic screw balance with Breguet hairspring
  • Power Reserve: Unknown
  • Production Period: Unknown, probably around 1920 - 1940
  • Country: France
  • Identification: See link mentioned above
  • Contributor ©: Dean Batstone
  • External Link 2: https://watch-movements.eu/blog/en/2022/05/01/crettiez-watch-movements-and-social-riots/

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