Junghans J80; Junghans 680.70

Caliber Junghans J80; Junghans 680.70

sub second; no shock protection; 13 Jewels

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Junghans J80; Junghans 680.70; 13 Jewels; Front

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Junghans J80; Junghans 680.70; 13 Jewels; movement

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Junghans J80; Junghans 680.70; 13 Jewels; back

  • Type: mens wristwatch
  • Manufacturer on dial: Junghans
  • Trademarks/imprint: Junghans; Back: J and UNGHANS in eight-pointed star; BODEN EDELSTAHL
  • Number of jewels: 13
  • Escapement: lever escapement
  • Balance staff: two-legged screw balance
  • Shock protection: no
  • Features: escape wheel cock separat
  • Beats per hour: 18.000 A/h
  • Dimensions: 10.5“‘
  • Production period: 1931 - 1938
  • Functions: hand winding
  • Display: hour, minute, sub second at 6
  • Dial: white dial with luminous figures (Radium), minute lines (railway); inner circle; sub second at 6
  • Hands: Lance
  • Second hand: thread with a small counterweight
  • Case form: rectangular
  • Case diameter (mm): 26.5 mm x 36 mm
  • Case material: brass, chromed
  • Back: Steel; pressed
  • Bracelet: no

Remark

The movement shown is generated in the 13 Jewels version. The movement is fixed in a dust cover capsule.

Caliber overview

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Caliber classification Junghans J80, Junghans 680

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: J80/9; J80S; J80M (was probably Meister). This I have not seen yet. How the versions with center seconds with or without shock protection in the designation after 1962 (680.??) are called, I do not know.

If someone can provide further information about the caliber Junghans J80 I would appreciate a message!