Sjöö Sandström Caliber SS G4 Watch Movement

Brand	Sjöö Sandström
Manufacturer	ETA / Valjoux
Caliber Number	SS G4
Base Caliber	ETA/Valjoux 7754 (top grade)
Movement Type	Automatic
Jewels	25
Power Reserve	44 hours
Vibrations Per Hour	28,800
Shock System	Incabloc
Hacking?	Yes
Features	Hours, minutes, small seconds, central chronograph seconds, day, second and third time-zone
Country of Manufacture	Switzerland
Known Models	UTC Extreme

The pictured example of the caliber SS G4 from a Sjöö Sandström which is a modified ETA 7754. This movement was found in this Sjöö Sandström UTC Extreme II. This movement has been custom decorated by the manufacturer.