I have a chronograph (Seiko Prospex) and I agree that its less legible than others. I still wear it though because I think its beautiful and its really comfortable to wear. Your Dekla's really nice.
I understand that. To be honest, while I do wear watches for their time keeping function, the watch I chose to wear from one day to another essentially comes down to which ever one grabs my fancy as I visually scan the collection. Their looks matter a lot to me, in addition to keeping good time. So in that sense, they also serve me as fashion baubles. I greatly enjoy looking at them from time to time on my wrist when I have no interest whatsoever in knowing just what time it is.
Being retired and quite a home-body, I wear a watch of some sort every day, 24/7. Not because I need to know the time for any important reason, but simply for the joy of seeing an attractive watch on my wrist. No one else sees what watch I am wearing (even my wife doesn't notice.) I just wear a watch for my own enjoyment. Simple pleasures for a simply mind.
I have also found that after a couple of years fussing over the accuracy of my watches, I don't pay any attention anymore to how few seconds a given watch is keeping in accuracy. It doesn't really even matter if it's 2 seconds a day or 15 spd. In part because I only wear a given watch for two or three days in a row anyway, before switching out to a different watch.
I guess if I only wore one watch, all the time, I might be more fussed if the watch didn't stay within a few spd. But most automatic watches these days tend to do well in that regard, or can easily be regulated to do so. And quartz/solar quartz watches are stellar for time keeping.
Thus, I think that whatever watch one chooses to buy and to wear is just a personal right and no justification to anyone else is needed for any reason. Life is short... enjoy beauty, design, and visual appeal as much as you can, while you can.
(Sometimes, of my thirty or so watches, I do wear one of my chronographs, simply to enjoy that complicated, sporty look! Readability be damned. 😂)
I greatly enjoy having a wide variety of watches to choose from to wear - to suit particular moods, attire, occasions, activities, or frivolous whims!