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

Remarks:

• Date quick setting by repeatedly changing 20 – 24 o’clock
• Automatic with bidirectional winding
• Movement family:
  • Osco 1060: 10 1/2”’, manual winding, no date
  • Osco 1062: 10 1/2”’, manual winding, date
  • Osco 1064: 11 1/2”’, automatic, date
  • Osco 1065: 11 1/2”’, automatic, no date

• Listing ID: 19390
• Manufacturer / Brand: Osco
• Caliber: 1064
• Size in French Lignes: 11 1/2'''
• Size range mm largest diameter: 22 - 31 mm
• Shape: Round
• Winding: Automatic
• Hands Setting: Crown
• Seconds Hand: Sweeping seconds (central seconds)
• Escapement: Lever (Swiss, English, Glashütte)
• Date, Day, Month...: Date
• Jewels: 25
• Setting Lever Screw/Pin Position: Right
• Balance Position: Bottom (120 - 240°)
• Shock Protection: Rufachoc?
• Beats per hour: 18,000
• Balance Type: Nickel
• Power Reserve: Approx. 38 hours
• Production Period: Unknown, probably 1960+
• Country: Germany
• Identification: Movement marked with OS 1064 under the balance wheel. Listed in the 1960 addendum to the Flume K1 catalog.
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)