This is the Silver Ring Crystal fitted to the Pre-Moon smaller case CK2915, CK2998, 105.002 models.
These are Omega supplied service crystals for the c.321 1958-1963 Smaller case without crown protectors, this has the silver ring as shown on image. I have the later black ring crystals for the 105.003 model onwards on a different listing.
This was fitted to the model stated above CK2915 CK2998 105.003.
063pz5078 Omega Speedmaster pre-Moon Crystal Silver Ring ck2915 ck2998 105.002
Items can only be returned if either faulty, in the case of the item not being required then it must be returned exactly as received. For example if the item is new in a sealed packet and/or has protective covers in place then it must be returned the same otherwise item is no longer new and the value is greatly reduced, these items can only be returned/refunded by agreeing a lower value with Swiss Limited Editions before returning reflecting the new lower value of the item.