Hi OF, I was wearing my much loved SM 2976 today and I noticed my crystal doesn't have the omega logo in centre. I think this has probably been replaced at some point. I am curious if an Omega crystal would be hard to source? The current crystal/acrylic feels a little plasticy so wondering if an Omega one would be feel more like glass? Thanks in advance for any advice on this Regards, Dave
Looks like they started in 1948 to the 1970s to get logo? But somehow not all of them did. Several threads about it here: https://omegaforums.net/threads/omega-symbol-on-crystal.8062/#post-94778 https://omegaforums.net/threads/embedded-omega-logo-on-hesalite-on-an-angle.52217/#post-632069 https://omegaforums.net/threads/when-did-the-omega-logo-start-up-on-the-crystals.16766/#post-181629
If the current crystal is ok I wouldn't sweat it. Crystal's are consumable items and were routinely changed along with crowns during the lifetime of a watch. Doubt a omega logo crystal will feel any different and the only person that will notice is you when looking through a loupe. If you find it bothers you over time then wait until a service or repair is due and do it then
Thanks for the replies everyone, I think it is only right it gets a proper Omega Glass! Especially thanks to @new_heuer that's so kind of you to find the correct one for me! I will be purchasing one of those today
Can I ask how you selected this as the correct crystal? I've just gone onto the site, searched for case 2976, and looked for the ":glass" as they call it there, and it comes up as "No results found", so I'm curious how you determined that this was the right crystal? The crystal for this case is 063PZ5171. For the OP - the chances of this being an original crystal are very slim, and these are changed regularly at service. There is possibly a difference between an Omega crystal and a generic one - it is not just cosmetic with the symbol as has been suggested. The tension rings in Omega crystals are often stepped, and this provides a recess in the ring for the dial to sit in. Generic crystals don't usually have this same step, so this can lead to damage on the perimeter of the dial, they can cause the movement to sit further back in the case than it should, etc. This is a photo of a generic tension ring on the left, and an Omega one on the right: The arrows represent the width of the outer part of the crystal - little difficult to see here but the one on the right has a step in the tension ring. Here is a tension ring removed form a crystal, so you can see the step more clearly: This is more than just a logo in the middle of the crystal. Cheers, Al
Thanks very much for the detail @Archer, I should have mentioned that I am planning to get my SM in for a service (not Omega) and thought it a good time to address the crystal and let someone far more qualified than me replace it for me if needed .