It's an original Omega crystal, but I have seen some date models with the cyclops and some without. Not sure if they originally came out of the factory with the cyclops and then crystals were replaced with non-cyclops ones or vice versa. It's possible that the decision was up to the buyer since you can get both cyclops and non-cyclops crystals for many models. I prefer the non-cyclops though, it lets you see the whole dial.
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