Family: UG Microtor (Polerouter)28,800 vph (4 Hz)
Calibre 138 SS is an automatic movement manufactured by Universal Genève. Introduced in 1955, it operates at 28,800 vph and served as the original Microtor automatic caliber, designed by Albert Pellaton. The movement powered the Polerouter collection and remains a hallmark of Universal Genève's in-house engineering. Production is discontinued.
TECHNICAL SPECIFICATIONS
Movement Type
Automatic
Frequency
28,800 vph (4 Hz)
Display Type
Analog
More Universal Genève movements
QUICK FACTS
BRAND
TYPE
AutomaticSTATUS
DiscontinuedMANUFACTURE
In-houseLAUNCH YEAR
1955CALIBER FAMILY
UG Microtor (Polerouter)ALSO KNOWN AS
138ss
FOR WATCH DEALERS
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