I love it too. Pink gold is my colour too - including discontinued models, you have four excellent references to choose from:
- The gen. 1 (disc.) with the back dial (quirky, classic - stunning)
- The gen. 2 (disc.) with the white dial (no pulseometer chapter ring though)
- The gen. 3 with the white dial and blued hands (I must say, my absolute favourite)
- The gen. 3 with the black dial and pink gold hands (bold, stunning)
There are no bad choices among them - go with the one that smiles at you. If you are a new only buyer, the last two are your only options (other than NOS which is almost impossible to find wth Lange given low annual production numbers and popularity of all their chronographs).
I'd have to agree with posters here who've said you might well be pretty happy with the 1815 Chrono and an Odysseus if these are indeed each available to you as a first-time Lange buyer. I'd also agree with others who have said that you ought go straight for the Dato (again, if available to you as a new Lange buyer). It's the same base caliber - the game-changing, endlessly delightful L951. If it were me...I'd go for either the 1815 Chrono or the Dato - I feel this really is a situation to value quality over quantity.
Very best wishes with your deliberations and - whichever way you decide to go - I hope you will soon join the Lange owners' circle.