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ETA 932

 

ETA 932ETA 932

Description

The ETA 932, here in the enhanced version by Wyler, is a mens' watch movement with a diameter of 11 1/2 lignes. It bases on the ETA 900 and adds an indirectly driven center second to it, while using a larger main plate.

ETA 932 "live".

Same movement, this time in slow-motion

base platebase plate

The main plate is stamped with "900". It's unknown, whether this is a reference of the ETA 900 or a Wyler-internal code.

The construction of this movement is strictly classical - The minute wheel is directly driven by the mainspring, and the fourth wheel at position "6" could carry the decentral second hand - but not on the ETA 932, where the third wheel drives the center second hand. To avoid a jumping second hand, a very flat spring is used at the bottom of the center second hand train.

Wyler Incaflex balance cageWyler Incaflex balance cage

The balance cage assures, that the Wyler Incaflex balance does not bend the thin axle on shocks.

Wyler Incaflex balanceWyler Incaflex balance

Here you can see the very long slanted balance legs, which hold the balance ring elastically and absorb shocks. Because of this, the balance wheel is not shock protected.

ETA 932 dial sideETA 932 dial side

On the dial side, you see the yoke winding system and the minute engravings. They were used to help adjusting raw movements, before timegraphers were invented at the mid of the last century.

 

 Technical data

ManufacturerETA
Caliber932
Number of jewels17
EscapementAnchor with pallets
BalanceNickel screw balance
Shock protection(s)Wyler Incaflex
Balance cock directionclockwise
Hairspring studfixed
Regulator typeLong regulator arm
Movement constructionFork
Escapement wheel, Fourth wheel, Third wheel, Center wheel
Mainspring barrel
Construction typesolid construction
Bridge shapehalf anchor right, straight lines, 4 gears
Winding mechanismyoke
Setting lever spring3 holes
FeaturesSCI
FunctionsHour, minute, second
Beats per hour18000
Size111/4''' (measured: 25,0 mm)
Image in Flume Werksucher 1958 32
ETA 932ETAETA93211 1/4''''''ETA 93217 Jewels, 11 1/4'''''', 18000 A/h, SCI
Factsheet

 

 

Test results

The specimen tested here comes from a Wyler watch was is about 70 years old. It was recently cleaned and lubricated.

 

Timegrapher protocol

On the timegrapher, this specimen showed acceptable results. The deviation on the vertical position were more or less negative, while on the horizontal position, there were a bit fast. Such a behaviour is quite normal, especially on movement, which were in use for many, many years.

crown rightcrown right crown topcrown top crown leftcrown left crown bottomcrown bottom 
dial topdial top dial bottomdial bottom 

 

 

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