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ETA 2390

 

ETA 2390 with Glucydur screw balanceETA 2390 with Glucydur screw balance

Description

ETA 2390 with nickel screw balanceETA 2390 with nickel screw balance

 

 

 Technical data

ManufacturerETA
Caliber2390
Number of jewels17
EscapementAnchor with pallets
BalanceGlucydur screw balance, Nickel screw balance
Shock protection(s)Incabloc
Balance cock directionclockwise
Hairspring studfixed
Regulator typeLong regulator arm
Movement constructionFork
Escapement wheel, Fourth wheel, Third wheel, Large driving wheel
Mainspring barrel
Winding mechanismyoke
FeaturesSCD
FunctionsHour, minute, second
Beats per hour18000
Size101/4'''
Image in Flume Werksucher 1957 32
ETA 2390ETAETA239010 1/4''''''ETA 239017 Jewels, 10 1/4'''''', 18000 A/h, SCD
Factsheet

 

 

Usage gallery

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