As a BP owner, I'm always looking for different straps to change the style of the watch.
A couple weeks ago I came across what might be the best after market strap for it on AliExpress: it's a sailcloth rubberized 23mm strap pretty much like the original, but so much better.
- The sides are not rubberized, so they don't wear it easily like the original
- It's totally waterproof and it dries pretty quickly
- Perfect fit (23mm after all)
- Extremely robust but soft
The only things I don't like are the buckle (polished, doesn't match the Bathyscaphe) and the fact that comes with Blancpain written on the underside.
(It's dark blue, although may not show in the pictures)
Yes, I'm very cheap for buying a 60 dollar strap for a 7000 dollar watch, but you know who is cheaper? Blancpain - for throwing in such a brittle strap on their product.