You may find this a bit random, but here's an interesting thing. A few weeks ago I bought a suspiciously cheap Casio from eBay. I half-expected it to be a fake (and it is), but I was OK with that for less than £6 including delivery, partly because I was curious to see what it would be like.
It's actually a decently serviceable cheap LCD watch. Not very accurate. The bracelet is a bit sharp, otherwise it's OK. But it does have an Achilles Heel.
Viewed straight on, or mostly straight on, the LCD display is fine. I've photographed it here next to a genuine Casio (albeit not the same module as the real version of the fake one). As you can see the contrast is if anything slightly better on the fake.
(https://i.ibb.co/KsNChnD/casiolcds1.jpg)
But from an angle, it's a different story:
(https://i.ibb.co/X5rXT4L/casiolcds2.jpg)