Family: 390
The FEF 390 is an automatic movement manufactured by Tudor and introduced in 1958. Based on a Fleurier Ebauches caliber, it powered early Submariner references 7922, 7923, and 7924. Production has been discontinued. This was a sourced movement rather than an in-house caliber, reflecting Tudor's practice during this period of using external ébauches for its dive watches.
TECHNICAL SPECIFICATIONS
Movement Type
Automatic
Display Type
Analog
QUICK FACTS
BRAND
TYPE
AutomaticSTATUS
DiscontinuedMANUFACTURE
ÉbaucheLAUNCH YEAR
1958CALIBER FAMILY
390ALSO KNOWN AS
fleurier 390