Junghans 653.04; Durowe 7528/2 (INT)

Caliber Durowe 7528/2 (INT); Junghans 653.04

sweep second; 25 Jewels; automatic; date; weekday display


Junghans 653.04; Durowe 7528/2 (INT); Front


Junghans 653.04; Durowe 7528/2 (INT); movement


Junghans 653.04; Durowe 7528/2 (INT); movement


Junghans 653.04; Durowe 7528/2 (INT); back

  • Type: men´s wristwatch
  • Manufacturer on dial: Junghans
  • Trademarks/imprint: 6-pointed silvery star with black J; JUNGHANS; automatic; below centre: weekday display; month calender; at 6: MADE IN GERMANY; Back: STAINLESS STEEL; WATERRESISTANT
  • Number of jewels: 25
  • Escapement: lever escapement
  • Balance staff: Nickel-ring-balancewheel
  • Shock protection: Junghans Star-Shock
  • Particularity: Calender
  • Beats per hour: 21.600 A/h
  • Dimensions of movement: 11,5´´´
  • Time of production: 1972 – 1974
  • Functions: Automatic; Quick date setting; Manual fast switching of the monthly calendar for weekdays
  • Display: hour, minute, sweep second; Date (at 3); weekday indication (between 6 und 3); month indication by setting the weekday, beginning with the first day of month on 1
  • Dial: silver; applied silver bar indexes with small luminous dot (Tritium); at 3, 6, 9, 12 red with black; outside: black, printed minute line; month display
  • Hands: Bars with lumina (Tritium)
  • Second hand: Thread with counter weight
  • Caseform: Cushion
  • Case diameter (mm): 41,5
  • Case material: Steel, Sonnenschliff
  • Back: Steel, screwed
  • Band/Bracelet: none



Junghans 653.04; Durowe 7528; Collection: Bernhard Schmotte

Offered were two models, a variant with oval stainless steel case and bright dial and one in a gold-plated, square case. The second variant was used in the same way by other companies, including the French watch company LIP. The date and the monthly calendar indication can be conveniently switched through the crown. In crown position 1, turning it clockwise: date setting, turning counterclockwise: setting the monthly calendar. The calendar indication does not automatically switch on after one month but must be switched manually, then the respective weekday in the monthly overview can be read. The case of the square version shows an interesting attachment of the back cover: A small embossed note near the housing edge on the back indicates that the tape should be removed. Between the lugs there are two small screws that secure the lid.