14”’ | Hand Wind | Swiss Lever | Small Seconds | Chronograph |

Remarks:

• Column-wheel chronograph: central chronograph seconds, 30 min counter at 3 H
• 2 variants of the J88:
  • 688.00: without shock protection (1949 – 51)
    688.70: with shock protection (1952 – 65)

• Listing ID: 6241
• Manufacturer / Brand: Junghans
• Caliber: J88 / 688.70
• Size in French Lignes: 14'''
• 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
• Other Functions: Chronograph
• Jewels: 19
• Setting Lever Screw/Pin Position: Right
• Balance Position: Right (0 - 120°)
• Shock Protection: Junghans II
• Beats per hour: 18,000
• Balance Type: Monometallic screw balance with Breguet hairspring
• Power Reserve: Unknown
• Production Period: 1949 - 1969
• Country: Germany
• Identification: Movement marked with JUNGHANS 88. Listed in the Junghans watch catalog 1950.
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)