How does one remove the rotor on an ETA 2892?

[Rolexman]

Tried the search function but without any results.

There's no screw in the middle, only three holes. Do I need a special tool for it?

Edited November 24, 2007 by Rolexman

[FxrAndy]

You have a shiny ring with 4 cutouts on it, on the inside of this ring you have flats that when aligned with the flats on the bearing will allow the rotor to be removed, i had a small problem with my AT with the seagull where the retaining ring turned its self and the rotor fell off !, i got it back on no problems with a couple of screw drivers, i am sure that there is a special tool with 4 prongs to do this a lot easyer.

[docblackrock]

Those three holes do contain three screws, except they are inverted.

In terms of assembly, the rotor is actually a more attached part of the auto-winding mechanism than say the rotor on a 2836 or 7750.

See pics....

And in situ...

So you'll need to disassemble more than you're used to. What are you trying to do anyway? Rotor swap for logo?

[FxrAndy]

That is a different one DBR, my seagul one looks like this 2892 here below

[FxrAndy]

: Rolexman, can you show how yours looks please.

[docblackrock]

That is a different one DBR, my seagul one looks like this 2892 here below

If it's Seagul then it's a clone.

Rolexman is talking about a standard ETA 2892.

[FxrAndy]

That is what the picture is from a standard 2892, picture curtesy rranft, mine is a seagull same as cousins sell

[FxrAndy]

@ DBR i cant find a picture of another 2892 with a rotor like the one you show??

[RWG Technical]

@ Doc

I have never seen your style of Rotor attachment, it must be an aftermarket non-ETA one...looks as if it only comes apart from below.

RG

[FxrAndy]

@Z do you have special tool to remove the rotor or just use a screw driver to rotate it, i know you can get them off very well that way but getting them on is a pain as you have to put pressure downwards and rotate at the same time.

[RWG Technical]

@Z do you have special tool to remove the rotor or just use a screw driver to rotate it, i know you can get them off very well that way but getting them on is a pain as you have to put pressure downwards and rotate at the same time.

I use a grey screwdriver to rotate the spring. For installation I use my finger to get the 4 corners to engage into the bearing, then turn it. Once done I clean it off with Rodico...works fine, as long as your careful.

RG

[FxrAndy]

Thanks Rob, i hope that clears it up for Rolexman too.

[RWG Technical]

My pleasure as always.

RG

[docblackrock]

@ Doc

I have never seen your style of Rotor attachment, it must be an aftermarket non-ETA one...looks as if it only comes apart from below.

RG

Really? Well it's not mine but a TZ Classics source - I remember this being asked before and have the review bookmarked....

(obviously replace the xx's with tt's)

hxxp://forums.timezone.com/index.php?t=msg&goto=934&rid=17174#msg_934

hxxp://www.chronometrie.com/eta2892/eta289202.html

[Rolexman]

Thanks for all the info guys!

I was referring to the Valgranges copy movement in the Chopard GTXL. I thought all the three rotor attachment systems were the same. Apperently I was wrong, sorry. This is the movement and rotor I'm talking about:

Do I just unscrew the three tiny screws?

Edited November 25, 2007 by Rolexman

[FxrAndy]

That is where i would start but never done it my self

[olivia]

Yes...remove the three screws. That worked for me just fine. I could not see any other way of removing it.

[docblackrock]

Do I just unscrew the three tiny screws?

Call me pedantic but I'd start with those eight tiny screws on the caseback first

[offshore]

Call me pedantic but I'd start with those eight tiny screws on the caseback first

Hmmm, maybe not too pedantic doc!

He could alternatively start by using one of these!

Offshore

[Rolexman]

LOL! Thanks a lot guys. I appreciate all your help. I will give it a go.

[SSTEEL]

https://www.cousinsuk.com/catalog/tools/automatic-rotor-weight-bolt-removing-and-fitting-tools/oscillating-rotor-weight-lock-release-tool-multi-collet-horotec#select

 

How to replace rotor bearing on an automatic watch. Valjoux ...

Edited April 28, 2014 by SSTEEL

[Rolexman]

HAHAHA... Me still being a noob

[SSTEEL]

You have come a long way mate  I need one of these tools, and for what it is, and does, its damn expensive for what it is, so looked for an alternative, and found a clone of one for €55 euros delivered