Glashutte Original Caliber GO 39-50

Brand	Glashütte Original
Caliber Number	GO 39-50
Base Caliber	In-house
Movement Type	Automatic
Jewels	48
Power Reserve	40 hours
Vibrations Per Hour	28,800
Balance Spring	Flat
Shock System	Incabloc
Regulator	Swan neck
Functions	Perpetual calendar
Country of Manufacture	Germany
Known Models	39-50-14-22-04

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