Opening an Omega Speedmaster Automatic Day-Date 3520.50.00

[Mojofilter]

This Speedmaster has no opening lug slots on the back cover.  Ordinarily I would assume it was snap on back but I see no notch for a case knife either.  How to open safely?

Thanks,

- Tim

[Delgetti]

Same thing on my Speedy Reduced.  Used a watchmaker knife (Rolex, hihi) with a thin blade, put it in the gap carefully, caseback snapped off quite easily.

[JohnR725]

always nice if you would post pictures so we know exactly what you're talking about. Because it may be that this is a watch that goes out through the front you need to remove the crystal.

[Mojofilter]

Yes!  Sorry 'bout the picture.  Here are two...

Thanks!

That first picture makes it look like there's a notch (for case knife) but there's not.  That's a reflection.

That first picture makes it look like there's a notch (for case knife) but there's not.  That's a reflection.  It is the same gap (or lack thereof) all the way round.

[Delgetti]

Here some pics of the 3510.50.00:

 

 

[Mojofilter]

Thanks Delgetti - that's what I needed to see.