Oh dear me Zin,
You've dropped to such all time depths that you should have a watch with a decompression valve.
As for Terry's poser. My Hesalite doesn't have the blue hue given off by other watches in my collection that do have the AR coating. As you say, maybe it doesn't reflect like sapphire crystal. It does reflect some though. Also, Sapphire crytal glasses are usually completely flat. Where as the Speedy Pro Moon Watch Hesalite is quite curved.
Umm? I'd like to hear the definitive answer which I'm sure someone on this forum has.