Junghans 666.02

Caliber Junghans 666.02

astro quartz


Junghans 666.02; Front


Junghans 666.25; side


Junghans 666.25; back

  • Type: men´s wristwatch
  • Manufacturer on dial: Junghans
  • Trademarks/imprint: JUNGHANS; six-pointed star with white J; astro quartz; below 6: MADE IN GERMANY; Back: 00000422 ALL STAINLESS STEEL  SHOCK- AND WATERRESISTANT 5ATÜ MADE IN GERMANY; Number (sales sample): M. 284
  • Number of jewels: 13
  • Escapement: Quarz
  • Dimensions of movement:
  • Time of production: 1971 – 1974
  • Functions: hacking, date quick set; crown at the back
  • Display: hour, minute, sweep second, date at 3
  • Dial: structured dark blue; applied, chrome-plated bar hour indexes with lume; printed white minute lines
  • Hands: chromed bars with lume
  • Second hand: small thread with counterweight
  • Case shape: round
  • Case diameter (mm): 40
  • Case material: Steel
  • Back: Steel
  • Reference number:
  • Serial number: 00000422
  • Bracelet and clasp: not original



Junghans 666.02; front


Junghans 666.02; movement without battery


Junghans 666.02; movement with battery


Junghans 666.02; movement detail

This watch is a sample for salesman which shows the engraved number on the watches back: M. 284 (M. = Muster = Sample). The crown on the back looks different to those beeing used later. The serial number is  very low (00000422). The watch could be an example of a pre-series as also the lot number of the installed bar quarz is a lower number (013) than those of the most Junghans 666.02 with the number 122.