btw, if you want to go leather i have a few extra authentic Omega straps and buckles that have never been used... i buy them for future watches as i come across them since it's such a pain in the ass to buy from old women that work in the jewellery stores that get the Omega licenses.
the only way to get around that hassle is to go right to an Omega boutique, if you're near one.
that's my Cal 265 Omega and a few of the extra straps i have... i think i have 3 extra straps and an extra deployment