11 1/2”’ | Hand Wind | Swiss Lever | Direct Sweeping Seconds | Date |

Remarks:

• Date: adjustment by alternating 18:00 – 24:00
• Difference to the Jeambrun 26DC:
  Modified date switching mechanism, which enables semi-fast adjustment

• Listing ID: 767
• Manufacturer / Brand: Jeambrun
• Caliber: 27DC
• Size in French Lignes: 11 1/2'''
• Size range mm largest diameter: 22 - 31 mm
• Shape: Round
• Winding: Manual (Crown)
• Hands Setting: Crown
• Seconds Hand: Sweeping seconds (central seconds)
• Escapement: Lever (Swiss, English, Glashütte)
• Date, Day, Month...: Date
• Jewels: 17
• Setting Lever Screw/Pin Position: Left
• Balance Position: Right (0 - 120°)
• Shock Protection: Antichoc 102
• Beats per hour: 18,000
• Balance Type: Nickel
• Power Reserve: Unknown
• Production Period: Unknown
• Identification: Movement marked with Jeambrun logo (JEJ in a circle) and 27DC. Not listed in any movement finder known to me.
• External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-54#post-7500427
• Country: France
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)