A. Lange & Söhne

The movement of the 1815 Rattrapante PC (left) or the movement of the Datograph Perpetual (right)? Fx...  

I personally find the engine if the 1815 split second pc less pleasing aesthetically becoz : - hidden balance wheel - spring used to control the split seconds - apparent this mov doesn't have a jumping minute counter - levers look a bit wider

of bridges and their layout , but both are so pleasing to the eye that in my opinion it really does not matter.:) I would be happy with either one! Regards Edward

Beautiful images, amazing movements, thanks for sharing!

Both are stunning. But then, aren't all Lange chronograph movements?

But is there an incorrect answer to this question?!?

I can add a photo but it will not be as effective as showing all three side by side.