From a performance point of view, the BC01 movement has a 100-hour power reserve, which is 70 hours higher than B01. This is almost the only real measure I think Breitling Repches Watches UK has released. However, I believe I heard them mention that BC01 has a 75% increase in performance over time compared to B01.
Through the sapphire crystal caseback of the Breitling Replica Watches Reviews you can see the movement. Clearly, it is different than the stock B01 with all the black parts and some unique elements.
In addition to the BC01 movement, the Breitling Superocean Heritage Chronoworks sports Fake a 46mm-wide case and rotating bezel. Case quality is actually really nice in terms of polishing and overall feel. The dial also has a unique design among other Breitling Superocean Heritage timepieces.
Matched to the 100-meter-water-resistant black ceramic case is a new rubber strap that is meant to resemble the look of Swiss Breitling Replica Watches mesh metal bracelet you can get with other versions of the Breitling Superocean Heritage.