Junghans J80/8; Junghans 680.75; Automatic; Power Reserve Indicator

Caliber Junghans J80/8; Junghans 680.75

Automatic; Power Reserve Indicator


Junghans J80/8; Junghans 680.75; Front


Junghans J80/8; Junghans 680.75; movement


Junghans J80/8; Junghans 680.75; movement


Junghans J80/8; Junghans 680.75; back

  • Type: men´s wristwatch
  • Manufacturer on dial: Junghans
  • Trademarks/imprint: JUNGHANS AUTOMATIC 22 JEWELS; Back: STAINLESS STEEL BACK SHOCK & WATERPROOF; J in eight-pointed star
  • Number of jewels: 22
  • Escapement: lever escapement
  • Balance staff: two-leg screw balance; scuttled screws
  • Shock protection: Junghans II
  • Particularity: Automatic; Power Reserve Indicator
  • Beats per hour: 18.000 A/h
  • Dimensions of movement: 10.5”’, corresponds to 23,3 mm, mit Guide ring for Automaticrotor: 29,8 mm; height 7 mm
  • Period of production: 1951 – 1953
  • Functions: automatic, power reserve indication
  • Display: hour, minute, sweep second, power reserve indication (at 6)
  • Dial: outer circle: cream; gilded Roman numerals (XII, III, VI, XI); gilded wedge indexes; inner circle: golden plated; radium dots; 12 luminous triangle; black minute lines, printed
  • Hands: Sword with luminous
  • Second hand: red; thread with counterweight
  • Case shape: round
  • Case diameter (mm): 35 mm
  • Case material: Brass, gilded
  • Back: Steel, screwed
  • Bracelet/strap: no



Junghans J80/8; Junghans 680.75; detail


Junghans J80/8; Junghans 680.75; movement


Junghans J80/8; Junghans 680.75; movement

The Junghans J80/8 was probably the predecessor of the J80/12, and originally had no power reserve indicator. Presumably, the plates of the J80/8 were then used for the movements with power reserve indicator. Engravings J80/8 are rare, probably the series was built only 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).