
I would not let go the Langematik Perpetual with it´s lovely Sax-0-mat micro rotor movement.
Personally, I would tend to swap the DS for a Datograph Perp. WG
Three Lange are better than only one or two.
HI Andreas,
I would recommend you to keep what you have. If you really waste a thought then maybe you can exchange the Dato for the Dato Perp....but never ever I would let a DS go away. A couple of years ago I replaced my Dato with a DS but I never regret it.No second. But.... as you see above: having a DS and a 1815 PerpRattr in a collection can be a very satisfied feeling.
Hope not to confuse you... Keep them!
stere
During the last couple years, I wasn't wearing my Datograph much. It just wasn't doing it for me. Then all of a sudden, it is my favorite watch. I have been wearing it for a couple months straight and have not gotten bored with it. I think we go through various cycles and sometimes we want change. It would happen again with the new crop of watches. Maybe change a watch strap.