Movement Alternatives for Great White

[vlydog]

I plan on swapping out the MBW movement in my 1665 for a slow beat movement. I purchased a new ETA 2846 but it has a noisy rotor. Are there any other movements that would be at home in this vintage sub?

Thanks.

[tmg]

Maybe 27xx series ETA's but those are harder to source.

[vlydog]

Maybe 27xx series ETA's but those are harder to source.

Thanks tmg.

The reason I ask is that the 2846 I bought has much rotor noise. I not sure a little grease will be the solution.

[Stephane]

Hi All,

I was lucky enough to get JustAsGood's 5513 that feature a slow beat eta (not sure I remember which one though).

It is indeed a nice difference for a vintage Rolie to see it beat slowly.

I still have 3 vintage SDs hosting 2836 @ 28800...

I would love to see some of our usual specialists chime in and teach us which one should be sourced.

Cheers

Stephane

[Guest avitt]

Is your 2846 new or used? Has it been serviced recently? I don't think that rotor noise is inherent in the design of that movement...Mine's pretty quiet.

[RWG Technical]

Maybe 27xx series ETA's but those are harder to source.

I have at least 2 ETA 2789's (not certain on the exact caliber) in my spares bins...gathering dust...didn't know they were hard to find...

2846's are easy to find, but due to the vintage, probably need to be serviced.

As avitt pointed out, the 2846 is normally virtually silent when the rotor turns...

RG

[vlydog]

@ ziggy

Are the ETA 2789's a suitable alternative to the 2846? If so, I would be interested.

[RWG Technical]

@ ziggy

Are the ETA 2789's a suitable alternative to the 2846? If so, I would be interested.

I am not 100% sure, they are the same size, and I am assuming the hands etc are the same as the 2836, 2846 etc...

I'll have to check.

RG

[tmg]

I have at least 2 ETA 2789's (not certain on the exact caliber) in my spares bins...gathering dust...didn't know they were hard to find...

2846's are easy to find, but due to the vintage, probably need to be serviced.

As avitt pointed out, the 2846 is normally virtually silent when the rotor turns...

RG

I could be wrong Zig, I should have said I see a lot more 28xx series than 27xx for at the parts houses. You I'm sure know better than me

Vyldog, my 2846 is also very quiet in my 1665.

[vlydog]

Is your 2846 new or used? Has it been serviced recently? I don't think that rotor noise is inherent in the design of that movement...Mine's pretty quiet.

@avitt

my 2846 movement is new. In fact the sellers description on the bay was..."new and in the box."

I am certain that it is not serviced.

[vlydog]

I am not 100% sure, they are the same size, and I am assuming the hands etc are the same as the 2836, 2846 etc...

I'll have to check.

RG

@ziggy

It this compatibility issue works out, I would be interested in one of your dust collectors; if they are for sale.

Thanks

[RWG Technical]

I checked my spares, I have 2 ETA 2781's in stock, working but in need of servicing due to not knowing when they were last serviced.

The hands are the same size as the 2836, and it appears to be dimensionally the same size as well, so I would guess that these can also be used instead of a 2846...

RG

[Stephane]

Interresting inputs guys.

Vlydog, yours must have a rotor issue

So whatever ETA ref, it is fine as long as the hands fit the mvt and the size of the mvt fits the case.

Another question about 2846s: what are their true value in terms of money?

Could anybody tell us this?

Thanks & Cheers

Stephane

[Stephane]

Hi Robi,

Thank you so much for your help.

80$ shiped seems a good price indeed

Cheers

Stephane