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

Remarks:

• Movement family:
  • Otero 74: Hand winding, no date
  • Otero 742: Hand winding, date
  • Otero 77: Automatic, no date
  • Otero 772: Automatic, date

• Listing ID: 20759
• Manufacturer / Brand: Otero
• Caliber: Otero 742
• 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: Right
• Balance Position: Bottom (120 - 240°)
• Shock Protection: Trishock
• Beats per hour: 18,000
• Balance Type: Nickel
• Power Reserve: Approx. 43 hours
• Production Period: Unknwon, probably around 1970
• Country: Germany
• Identification: Marked with 742 and Otero logo. Listed in the Flume K3 catalog from 1972.
• Contributor ©: Anonymous