5 3/4 x 6 3/4”’ | Hand Wind | Swiss Lever | No Seconds |

Remarks:

• Movement family:
  • Longines 4LL = Longines 13.15: 18,000 bph, no shock protection
  • Longines 4LLV = Longines 13.15V: 19,800 bph, Incabloc shock protection

• Listing ID: 8256
• Manufacturer / Brand: Longines
• Caliber: 4LL = 13.15
• Size in French Lignes: 5 3/4 x 6 3/4'''
• 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...: None
• Jewels: 17
• Setting Lever Screw/Pin Position: Right
• Balance Position: Right (0 - 120°)
• Shock Protection: None
• Beats per hour: 18,000
• Balance Type: Monometallic screw balance, bimetallic screw balance
• Power Reserve: Unknown
• Production Period: 1937+
• Identification: Wheel train bridge marked with Longines and 4LL. As Longines 13.15 listed in the Classification Horlogère from 1939.
• Country: Switzerland
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)