New band info?

I recently got a really big promotion at work that I worked toward for years. A week after the promo I had a business trip to Paris (that I extended for pleasure and my best friend met me there) and after a lot of thought I decided to treat myself to this beauty. Bought it in the original Cartier store, one room over from where Cartier himself invented the design and with my best friend by my side. It was really special.

I love her and can’t wait to wear her for the rest of my life 🥹, but I could really use a black band. I’m definitely going to buy it direct from Cartier but I can’t find any info on different bands anywhere online??? Has anyone ever bought an extra Tank Louis band? And if so, how much was it? Wanting the black croc one.

Thanks!!