Junghans J80; Junghans 680.71

Caliber Junghans J80; Junghans 680.71

sub second; shock protection

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Junghans J80; Junghans 680.71; 16 Jewels; Front

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Junghans J80; Junghans 680.71; 16 Jewels; movement

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Junghans J80; Junghans 680.71; 16 Jewels; inner case back

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Junghans J80; Junghans 680.71; 16 Jewels; back

  • Type: men´s wristwatch
  • Manufacturer on dial: Junghans
  • Trademarks/imprint: JUNGHANS; at 6: STOSS- U. WASSERGESCHÜTZT; back: Boden Edelstahl; centered: J in 8-pointed star; stoss- u. wassergeschützt
  • Number of jewels: 16
  • Escapement: lever escapement
  • Balance staff: two-leg screw balance
  • Shock protection: Junghans II
  • Particularity: non separat lever bridge; additional inner lid
  • Beats per hour: 18.000 A/h
  • Dimensions of movement: 10.5“‘
  • Time of production: 1949 – 1953
  • Functions: manual winding
  • Display: hour, minute, sub second at 6
  • Dial: silvery, arab. Radium-lume (no 6, there sub second with printed, black second strokes and longer five-second-strokes); grey ring (printed) with stroke minute like railway
  • Hands: lance with lume (lume possibly not original)
  • Secondhand: thread
  • Case shape: round
  • Case diameter (mm): 33 mm
  • Case material: Brass; chromed; additional inner lid zusätzlicher Innendeckel, presumably protection against dust and magnetism
  • Case back: steel, screwed, very massiv
  • Bracelet: none

Remark:

Since Junghans introduced the shock protection at about in the years 1949 - 1950  the clock appears to have been short produced after this time.

 

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).