I have never seen a watch with a convex crystal – which is what you need to start a fire (and while I’m at it, forget Lord Of The Flies – Piggy was nearsighted, which requires concave lens; no fires started with his glasses).
I have never seen a watch with a convex crystal – which is what you need to start a fire (and while I’m at it, forget Lord Of The Flies – Piggy was nearsighted, which requires concave lens; no fires started with his glasses).