Junghans J80; Junghans 680.70

Caliber Junghans J80; Junghans 680.70

sub second; no shock protection


Junghans J80; Junghans 680.70; Front


Junghans J80; Junghans 680.70; movement


Junghans J80; Junghans 680.70; back

  • Type: mens wristwatch
  • Manufacturer on dial: Junghans
  • Trademarks/imprint: JUNGHANS; Back: Boden Edelstahl; J in eight-pointed star
  • Number of jewels: 15
  • Escapement: lever escapement
  • Balance staff: two-legged screw balance
  • Shock protection: no
  • Features: escape wheel cock not separat
  • Beats per hour: 18.000 A/h
  • Dimensions: 10.5“‘
  • Production period: 1936 – 1949
  • Functions: hand winding
  • Display: hour, minute, sub second at 6
  • Dial: gilded inner circle, outside black printed ring with roman numerals or golden points; sub second with two circumferential rings, 10 minute dots; 15 minutes lines
  • Hands: Thread
  • Second hand: thread with a small counterweight
  • Case form: round
  • Case diameter (mm): 32 mm
  • Case material: brass, chromed, three-piece; middel part abraded, base-material visible
  • Back: Steel, pressed
  • Bracelet: none


The movement shown above is produced after 1936 because the escape wheel cock is not separat, but before 1949/50 as from this time the shock absorber has been installed.

Often the movements were marked on the dial side of the movement with a combination of letter and number/numbers that indicate the production time. The other shwon watch as an example: E8, ie May 1938 or 1948

Another example


Junghans J80; Junghans 680.70; Front


Junghans J80; Junghans 680.70; movement dialside


Junghans J80; Junghans 680.70; movement


Junghans J80; Junghans 680.70; movement


Junghans J80; Junghans 680.70; back

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).