Junghans J88; Junghans 688.70

Caliber Junghans J88; Junghans 688.70 Aviation Wrist Chronograph

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Junghans J88; Junghans 688.70; Front

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Junghans J88; Junghans 688.70; movement

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Junghans J88; Junghans 688.70; movement

  • Type: men´s wristwatch
  • Manufacturer on dial: Junghans
  • Trademarks/imprint: Junghans; 19 RUBIS Back: STAINLESS STEEL BACK SHOCK & WATERPROOF; J in 8 pointed star
  • Number of jewels: 19
  • Escapement: lever escapement
  • Balance staff: two-legged Glucydur balance
  • Shock protection: Junghans II
  • Particularity: Breguet; ratchet
  • Beats per hour: 18.000 A/h
  • Dimensions of movement: 14“‘
  • Time of production: Junghans 688.00: 1950 - 1951
  • Time of production: Junghans 688.70: 1952 - 1965
  • Time of production: as service chronograph for Bundeswehr: from 1956 or 1957 (Typ 88/0110), Typ 88/0111: from 1959
  • Functions: manual winding; Chronograph; 60 sec; 30 min
  • Display: Hours, minutes, sweep chronograph hand for 60 seconds counting, totalizer at 9 for small second; totalizer at 3 for 30 min. count
  • Dial: black gloss; arab . Radium-luminous numbers; minute lines with longer lines every 5 min.; there digits in 5 sec increments
  • Hands: Sword luminous (presumably luminous not original); white painted; white Chrono-center-hand lance with counterweight
  • Secondhand: totalizer hands without counterweight; white painted
  • Case shape: round; bidirectional rotating bezel with 12 surveys and minute point paint; at 5 min: lines; at 10 min.: digits; at 12: Triangle
  • Case diameter (mm): 38
  • Case material: Brass; matt chromed
  • Case back: steel, screwed
  • Strap/bracelet: none

The Junghans J88 in the trade press

Deutsche Uhrmacher-Zeitschrift No 8; 1950

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Deutsche Uhrmacher-Zeitschrift No 8 1950; page 202

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Deutsche Uhrmacher-Zeitschrift No 8 1950; page 203

Junghans information to the aviation chronograph

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Junghans information leaflet aviation chronograph Junghans J88

The handwritten note on the information leaflet points to the seller of the aviator chronograph: The company Friebe from Heidelberg, which supplies since 1951 aviation needs and then and now also watches for pilots.

Remark

Further information: Junghans and its aviation wrist chronographs

and here: The most beautiful: Junghans J88

and the version without shock protection: Junghans J88; Junghans 688.00

and on the great website of Dirk Fassbender: www.dirkfassbender.de/j88

Back Type 111 with engraving

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Junghans J88; Junghans 688.70; Rückseite; back

Here the back of the type 111 with engraving of the Bundeswehr supply.