But were they really all curved (convex shape)?
Are the hands really that much of a problem? I reckon its one of those things if it plays on your mind, even subconsciously, then you go looking for it. I know what you mean that they can disappear but I've only noticed this when I make it so by tilting my wrist - never ever had an issue reading the time. Each experience is individual, though. Its a beautiful watch and enjoy it! @M'Bob cracking pair (😉) you have there by the way - snap!
That is one of the reasons I sold my CK2998 Pulsometer despite it being my grail watch before I acquired it. The alpha hands are almost invisible at certain angles. Getting the time at a quickly glance was often impossible.