There's a really lovely Cartier red and dark green alligator straps that the SA showed me. She gave me a black one that they had at the boutique, but she said some colors could be up to 12 weeks depending on color/leather. There are also third party sites that sell straps at about half the price that have good reviews - I'm considering that option for strap colors I'm interested in but probably wouldn't wear as much! They come with a (obviously not actual gold) buckle so you can switch them on immediately without having to mess with moving the buckle.