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ETA 2840

 

ETA 2840ETA 2840

Description

The ETA 2840 came onto the market in 1991 with the start of the Swatch Automatic. It is a simplified ETA 2824-2 slower beating, without regulating device and with a cheaper Novodiac shock protection.

 

 

 Technical data

ManufacturerETA
Caliber2840
Number of jewels23
EscapementAnchor with pallets
BalanceNickel
Shock protection(s)Novodiac
Balance cock directionclockwise
Hairspring studmoveable
Regulator typeHairspring key
Winding mechanismyoke
FeaturesSCD,AUT
FunctionsHour, minute, second, selfwinding
Beats per hour21600
Size111/2'''
Production time1991 -
ETA 2840ETAETA28401991 -11 1/2 ''''''ETA 284023 Jewels, 11 1/2 '''''', 21600 A/h, SCD,AUT
Factsheet