Its a sapphire sandwich I am told, serial number is in the 87mm's so I think that is 2011? Looking for what reference number this is please if someone can help.
Think it’s newer than 2011 3573.50.00 Just keep in mind that if it is newer as I suspect, around 2016 it will likely be : 311.33.42.30.01.002 Just call omega - they will tell you