16”’ | Hand Wind | Swiss Lever | Small Seconds |

Remarks:

• Movement family (all have the same height of 5.30 mm):
  • Lépine (open face) movements
    • Cortebert 488: differences to 490, 514 not known
    • Cortebert 490: differences to 488, 514 not known
    • Cortebert 492: different bridge shapes (see extra picture)
    • Cortebert 514: differences to 488, 490 not known
  • Savonnette (hunter) movements
    • Cortebert 489: differences to 491, 514 not known
    • Cortebert 491: differences to 489, 515 not known
    • Cortebert 515: differences to 489, 491 not known

• Listing ID: 20995
• Manufacturer / Brand: Cortebert
• Caliber: 489 or 491 or 515
• Size in French Lignes: 16'''
• Size range mm largest diameter: 31 - 40 mm
• Shape: Round
• Winding: Manual (Crown)
• Hands Setting: Crown
• Seconds Hand: Small seconds
• 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: Unknown
• Production Period: Unknown
• Country: Switzerland
• Identification: Original datasheet available (undated). Cortebert 492 listed in the Classification Horlogère from 1936.
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)