Ordered a SMP300 - strap help?

I did it. Ordered an SMP300 41mm. I do have slim wrists but I tried on my dads Tag F1 which is 36mm and it looked too small.

Now I never wear my watch in work, because I'm left handed and cannot write with the bracelet. I want to wear this one pretty much 24/7 though, so I'm thinking of getting a leather strap. Nothing too expensive, but half decent quality and comfortable, in blue.

Any recommendations?

I looked at Omega ones along with the Omega deployment... but dang they're expensive.