Wore my Orient X STI watch today and was surprised to see that its see-through caseback has turned foggy. The crystal in front however was fine.
This is quite rare to me. I usually see foggy crystals on the front but hardly on the caseback.
What happened here? Moisture entered from the caseback?
Here’s a picture of the front. It looks fine.
Here’s another incident about same model that I posted some time back.