Glashutte Original Caliber GO 39-50

Manufacturer	Glashütte Original
Caliber Number	GO 39-50
Movement Type	Automatic, self-winding mechanical
Jewel Count	48 jewels
Beat Rate / Frequency	28,800 vph / 4 Hz
Power Reserve	40 hours
Balance Spring Type	Flat
Anti-Shock System	Incabloc
Regulator Type	Swan neck
Functions	Perpetual calendar
Country of Manufacture	Made in Germany
Known Models	Glashutte Original Senator Perpetual Calendar  (Ref: 39-50-14-22-04) (Add your watch in the comments…)

This Glashutte Original caliber GO 39-50 was found in a Senator Perpetual Calendar watch with 48 jewels with a 21K gold rotor.

There are other variations of the caliber 39 including 39-22, 39-34, 39-59, 39-47, 39-52, and 39-58.

Additional Resources:

• Glashuette-Original official site