Both are great but i choose to sold my RG traditionelle but keep Lange 1 PT. so that's my answer. I guess due to Lange 1 is more visual interesting on dial side.
I have a soft spot for UN esp the 1846 marine collection. I love power reserve at 12 with sub dial at 6 o'clock. But for some other reason , I did sold my UN marine diver 40mm black dial several months ago.I live without UN for several months. Couple weeks ago, I found my new love. I did it agin joi