Family: Eterna Caliber 3960h power reserve28,800 vph (8 Hz)
Oak & Oscar uses the Eterna 3916M, a manual-wind flyback chronograph from the Eterna Caliber 39 family. The movement operates at 28,800 bph and delivers a 60-hour power reserve. It features a column wheel and stacked register layout, distinguishing it from conventional chronograph constructions. The caliber powers the Jackson chronograph and remains in production.
TECHNICAL SPECIFICATIONS
Movement Type
Manual Winding
Power Reserve
60h
Frequency
28,800 vph (8 Hz)
Display Type
Analog
Winding
Manual
COMPLICATIONS
ChronographFlyback
FEATURES
Column Wheel
QUICK FACTS
BRAND
TYPE
Manual WindingSTATUS
In ProductionMANUFACTURE
ÉbaucheCALIBER FAMILY
Eterna Caliber 39ALSO KNOWN AS
caliber 39cal. 3916m