Brand | Junghans |
Caliber Number | J880.1 |
Actual Caliber |
ETA 7750 |
Movement Type | Automatic, self-winding mechanical |
Lignes | 13.25”’ |
Diameter |
30mm |
Height |
7.9mm |
Jewels |
25 |
Beat Rate |
28,800 (4Hz) |
Lift Angle |
49 degrees |
Power Reserve |
48 hours |
Rotor Style |
Ball bearing system |
Rotor Winding |
Uni-Directional |
Hand-Windable? |
Yes |
Anti-Shock Device |
Incabloc or Nivachoc |
Balance Spring |
Nivarox |
Hand Count | 6 |
Functions | Central hours; central minutes; central chronograph seconds; small running seconds subdial at 9:00; 30 minutes chronograph counter at 12:00; 12 hour chronograph counter at 6:00; day/date at 3:00 |
Hacking Seconds? |
Yes |
Country of Manufacture | Switzerland, Swiss made |
Known Models |
Junghans Meister Chronoscope (ref: 027/4528.45, 027/4526.01, 027/7023.03, 027/7024.02, 027/7024.03) (Add your watch to the comments below…) |
The Junghans caliber J880.1 is a Swiss made automatic chronograph movement found in the Meister Chronoscope line of watches. This caliber is basically an ETA/Valjoux 7750 with a branded rotor.
J880.1 VS J880.2:
There is a similar caliber J880.2 found in the Max Bill Chronoscope series. The J880.1 and J880.2 are both based on the 7750, but the J880.1 is a tricompax layout with a small seconds subdial at 9:00. The J880.2 has a vertical bi-compax layout with no small seconds at 9:00. Some J880.2 have a date only without the day of the week.
Additional Resources:
Recent Comments
It looks like the Marloe Coniston uses this movement.https://www.marloewatchcompany.com/collections/all-watches/products/coniston-auto-black-edition
Thank you for sharing!
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