eta 2824 with chronograph ( piggy back)

[MordensWatchRepair]

I was told that the eta 2824 chronograph section must be held in a certain type of holder or it will fly apart during disassembly . Is this true???  Thanks everyone 

[Ado213]

That's true, there is a custom jig for this, most watchmakers won't touch these and just exchangee the module

[clockboy]

eBay item number:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

172195194305

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

[jnash]

From what i know it can be done without, the picture clockboy posted is just for the eta base movement and wont really help with the chrono.

I have one at the moment from a breitling but i will need lots of parts to get it back to working condition as most of the parts are corroded!

[vinn3]

the jig or  fixture:  can it be  made by a good  machinist?

[Mark]

I have serviced many of these and none have flown apart. I have not got a special jig but I can see where one would be very useful.