Junghans J80/8; Junghans 680.75; Automatic

Caliber Junghans J80/8; Junghans 680.75



Junghans J80/8; Junghans 680.75


Junghans J80/8; Junghans 680.75


Junghans J80/8; Junghans 680.75


Junghans J80/8; Junghans 680.75

  • Type: men´s wristwatch
  • Manufacturer on dial: missing
  • Trademarks/imprint: missing Back: no imprint
  • Number of jewels: 22
  • Escapement: lever escapement
  • Balance staff: two-leg screw balance; scuttled screws
  • Shock protection: Junghans II
  • Particularity: Automatic; pre-series
  • Beats per hour: 18.000 A/h
  • Dimensions of movement: 10.5''', corresponds to 23,3 mm, with  ring for automatic-rotor: 29,8 mm; height 7 mm
  • Period of production: 1950
  • Functions: automatic
  • Display: hour, minute, sweep second
  • Dial: missing
  • Hands: Sword with luminous
  • Second hand: thread with counterweight
  • Case shape: round
  • Case diameter (mm): 35 mm
  • Case material: Brass, chromed
  • Back: Steel, screwed
  • Bracelet/strap: no


The Junghans J80/8 is the predecessor of the J80/12. The series was probably only produced for a few months.

Caliber overview


Caliber classification Junghans J80, Junghans J81

Again, I find it difficult in some caliber allocation. With the above list I tried to provide some clarity on the different caliber and their designations.

The movements were produced at the same time with or without divided wheel bridge. There are versions with 7, 11, 13, 15, 16 and 17 jewels.

There's caliber Junghans J80 with various imprints on the bridge: J80S; J80M (was probably Meister).