I'm sure the boffins will correct me if I'm wrong here, but I'd:
1. Check the colour/texture, Tritium is grainy, Luminova and "toothpaste" are whiter and smoother.
2. Expose to light and check for glow, Tritium might glow for a few seconds, (maybe 20, maybe nothing by now) Luminova will glow a lot
3. If very white and smooth with no glow it might be the toothpaste type
So we are clear I am not aware of any Omega "Toothpaste" dials, only Rolex at this time.
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