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

Remarks:

• 1962 Junghans renamed its movements, J was replaced by 6, so the J87 became the 687
• Movement family:
  • Junghans J87, 687.70: fixed hairspring stud-holder
  • Junghans J87, 687.72: fixed hairspring stud-holder, date
  • Junghans J87/10, 687.73: fixed hairspring stud-holder, date, higher motion works
  • Junghans J87/10, 687, 687.00: mobile hairspring stud-holder
  • Junghans 687, 687.02: mobile hairspring stud-holder, date
  • Junghans J87/10, 687, 687.11: mobile hairspring stud-holder, higher motion works
  • Junghans 687, 687.13: mobile hairspring stud-holder, date, higher motion works

• Listing ID: 18142
• Manufacturer / Brand: Junghans
• Caliber: 687.70 / J87
• 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...: None
• Jewels: 17
• Setting Lever Screw/Pin Position: Left
• Balance Position: Bottom (120 - 240°)
• Shock Protection: Junghans II
• Beats per hour: 18,000
• Balance Type: Nickel
• Power Reserve: Approx. 44 hours
• Production Period: 1961 - 1962
• Country: Germany
• Identification: Movement marked with Junghans logo and 687.
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz)