Junghans J54a

Caliber Junghans J54a


Junghans J54a; Front; collection Weisser


Junghans J54a; Werk; movement; collection Weisser


Junghans J54a; Rückseite; back; collection Weisser

  • Type: men´s wrist watch
  • Manufacturer according to dial: Junghans
  • Trademark/imprint ZB: J in 8-pointed star
  • Number of jewels: 7
  • Escapement: Pin lever
  • Balance: pivot staff
  • Shockprotection: no
  • Special features: Equiped with bearing jewels
  • f: 18.000 A/h
  • Dimensions movement: 12'''
  • Production time: presumably from 1931 – 1932
  • Functions: manual winding
  • Display: Hour, minute; small second at 6
  • Dial: inner metallic circle with circular circumferential grooves; outer beige, patinated; luminous numerals radium 1 - 12; circumferential black minute dial with 24 h digits
  • Hands: Radium
  • Second hand: Thread with small counterweight
  • Case: round
  • Case diameter (mm): 30
  • Case material: brass, chrome-plated or nickel-plated, three parts
  • Back: pressed; brass, chrome-plated or nickel-plated
  • Band: no


List pf caliber (PDF)


Surprisingly, the smaller sister of the caliber Junghans J53 has an equipment with a  small second. The here shown caliber is the Junghans J54a because it is equipped with stones, the basic caliber J54 is not.

Here it goes to the sister without jewels: Junghans J54 and here it goes to the big brother, the Junghans J53: Junghans J53