7 x 8”’ (base movement 6 3/4 x 8”’) | Hand Wind | Swiss Lever | No Seconds | Date |

Remarks:

• Movement family:
  • Bifora 69: no date
  • Bifora 69 CAL: date
  • Bifora 691: like 69, new minute wheel bearing, different banking pins
  • Bifora 691 CAL: like 69 CAL, new minute wheel bearing, different banking pins

• Listing ID: 441
• Manufacturer / Brand: Bifora
• Caliber: 691 CLD = Dugena 714
• Size in French Lignes: 7 x 8''' (base movement 691: 6 3/4 x 8''')
• Size range mm largest diameter: 0 - 22 mm
• Shape: Form
• Winding: Manual (Crown)
• Hands Setting: Crown
• Seconds Hand: None
• Escapement: Lever (Swiss, English, Glashütte)
• Date, Day, Month...: Date
• Jewels: 17
• Setting Lever Screw/Pin Position: Left
• Balance Position: Left (240 - 360°)
• Shock Protection: Bifora Bishock
• Beats per hour: 21,600
• Balance Type: Nickel?
• Power Reserve: Approx. 40 hours
• Production Period: 1968 - 1980
• Identification: Movement plate marked with the Bifora logo and 691. Shown in the Flume K3 catalog from 1972.
• External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-58#post-8126200
• Country: Germany
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)