What is the difference between this:
Minox HG 8x43 BR Binoculars "Made in Germany" 62182 - Binoculars - Optics - Harrison Cameras

and this:
Minox HG 8x43 BR Black Edition Made In Germany Binoculars - Binoculars - Optics - Harrison Cameras

The first is 500 and the second is 650. They both appear to be the same model, just one is "the black edition" - what am I missing here? Certainly the set for 500 appears to be a decent price.

Whilst I'm on about these binos, what is the difference between the APO model and the non-APO model for Minox HG binos?

Thanks for any light that anyone can shed on this.