Junghans J80; Junghans 680.72

Caliber Junghans J80; Junghans 680.72

sweep second; no shock proof; one-piece train bridge

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Junghans J80; Junghans 680.72; Front

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Junghans J80; Junghans 680.72; movement

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Junghans J80; Junghans 680.72; back

  • Type: men´s wristwatch
  • Manufacturer on dial: Junghans
  • Trademarks/imprint: JUNGHANS; Back: J in eight-pointed star; Boden Edelstahl
  • Number of jewels: 17
  • Escapement: lever escapement
  • Balance staff: two-leg screw balance
  • Shock protection: no
  • Particularity: no shock proof; one-piece train bridge, stripe damaskeened
  • Beats per hour: 18.000 A/h
  • Dimensions of movement: 10.5“‘
  • Time of production: 1931 – 1940ies
  • Functions: manual winding
  • Display: hour, minute, sweep second
  • Dial: cream, partly patinated; Roman, printed figures XII, III, VI, XI; between longer printed, black line indexes; encircling minute lines, black printed
  • Hands: Baton
  • Second hand: Thread with a small heart-shaped counterweight
  • Case shape: round
  • Case diameter (mm): 36
  • Case material:Chromium plated brass, base material coming through
  • Back: Steel, pressed
  • Bracelet/strap: no

Remark

The version shown here of a Junghans J80 with sweep second has no shock protection. The movement was equipped with a beautiful stripe, that normally was reserved to the "Meister" version.

Caliber overview

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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).