8 3/4”’ | Hand Wind | Swiss Lever | No Seconds |

Remarks:

• Rocking bar winding
• Click on the dial side
• Movement family:
  • UMF 3 (M3): 15 jewels, with or without shock protection, different bridge shape than the one shown here
  • UMF 39-10: 15 jewels
  • UMF 39-12: 15/16 jewels, sweeping seconds
  • UMD 39-20, UMF 32-10: 17 jewels
  • UMF 39-22, UMF 32-12: 17 jewels, sweeping seconds
  • UMF 39-40, UMF 33: 5 jewels, pin lever
  • UMF 39-50, UMF 33, 33-50: 7 jewels
  • UMF 39-80: 15 jewels, no shock protection

• Listing ID: 12928
• Manufacturer / Brand: UMF
• Caliber: 3 / M3 / 3D / 39-80
• Size in French Lignes: 8 3/4'''
• Size range mm largest diameter: 0 - 22 mm
• Shape: Round
• Winding: Manual (Crown)
• Hands Setting: Crown
• Seconds Hand: None
• Escapement: Lever (Swiss, English, Glashütte)
• Date, Day, Month...: None
• Jewels: 15
• Setting Lever Screw/Pin Position: Left
• Balance Position: Bottom (120 - 240°)
• Shock Protection: None
• Beats per hour: 18,000
• Balance Type: Monometallic screw balance
• Power Reserve: Approx. 44 hours
• Production Period: 1955 - 1963
• Country: Germany
• Identification: Movement marked with UMD and 3D.
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)