The ETA 2840 is a vintage automatic movement from the 28xx family with date complication. An earlier generation movement in the lineage leading to the 2824-2.
Movement Type
Automatic
Jewel Count
21 jewels
Power Reserve
38h
Frequency
28,800 vph (8 Hz)
Diameter
25.6mm
Height
4mm
Display Type
Analog
Rotor Type
bidirectional
Winding
ball bearing
Shock Protection
Incabloc
BRAND
ETATYPE
AutomaticSTATUS
DiscontinuedMANUFACTURE
ÉbaucheCALIBER FAMILY
28xxCOUNTRY
SwitzerlandALSO KNOWN AS