Longines Conquest / ETA 988.431 - where to source help

[funkeymonkey]

Hello!
I have troubles with a gen Longines Conquest Reference L1.622.3 with the movement ETA 988.431 which is a quartz / LCD / Analog movement.The watch was dead when I got it. I replaced the battery but no sign of it coming back alive. When I wanted to lift the battery pad a little bit to have better contact to the battery, it just came of. Is it possible to solder it back to place? Also the crown can be turned without any effect on the hands. But while turning you can hear a little clicking sound.
Does anyone has experience with this movement? Should the hands turn when the crown is turned, or do they just turn when the movement is running on battery power?

 

[funkeymonkey]

Bump...
Does anybody know a source for a 988.431 movement?

 

[Rx4Time]

ETA 988.431/332 Geniune MOVEMENT SWISS MADE eta 988.431/332 | eBay

Find many great new & used options and get the best deals for ETA 988.431/332 Geniune MOVEMENT SWISS MADE eta 988.431/332 at the best online prices at eBay! Free shipping for many products!

www.ebay.com

Seller claims they have more than 10 of them in stock. This is probably your best bet

 

[funkeymonkey]

Thank you a lot for the link!
Curious that the display of those 988.431 are square, while my display is round.

But on my movement is a print: "988.431"
While all movements with round display I have found so far, show the number "988.432"

 

[funkeymonkey]

It turned out that the number 988.431 refers to the ETA movement beneath the Electronic circuit. 988.431 is the round display while 988.332 is the square display. The Electronic board seems to fit both versions. Therefore both numbers are printed on the circuit.

I sourced the electronic board only and changed it on my watch.

The old circuit was broken. After installing the new circuit board, the watch came back to life!!!