PCLs are part of the Rolex tool watch theme. They are the Watch version of the Swiss army knife. Like carrying a pocket mirror, good to check your hair ,makeup, check your teeth after a meal, great to momentarily blind someone with the reflections if the need arises. I would think with PCLs on a GMT that a pilot might find it a little reflective in the cockpit. Maybe why all the UFO reports
I love PCLs on my Daytona but only on the Daytona .