Starter quartz for service?

[Simeon]

I am looking to branch out from servicing / repair of mechanical watches to quartz.  I have serviced and fettled 2 x ESA 9154 and a Citizen Cosmotron and I like the electronic aspects.  What would be a good, serviceable, quartz movement to start with? 

[HectorLooi]

Probably any of the ETA quartz movements. I like the 955.112 as AliExpress has the PCB.

But probably get a lot of quartz watches from eBay and see what you get. I've gotten a batch with a Bulova quartz and a 214 and a couple of Fossils. Totally worth it.

[AndyGSi]

It depends what type and era of watches you think you'll be looking at.

The ETA mentioned by @HectorLooi is a good option but you could
look at some Seiko/Hattori as a lot of off brand watches use these.

Edit

I suppose the other question would be are you going to do this for pleasure or profit?

Edited 11 hours ago by AndyGSi