For Great White, I'd pair with either 1 of these below for summer fun.
One has colors of your country. The other...um, your neighbors to the south? Or the motherland across the pond? Lol, color associations aside, I think they enhance the white, red, and black colors found on the dial, hands, and bezel of your magnificent Great White.
As a side note: can you try on one at your boutique before committing to buy? Don't mean to hijack this thread, but there's been past debates on Omega Forum about the comfort of Omega's NATO design. While everyone is in agreement at how great the strap material feels, the controversy is in that exposed metal bit that digs against one's wrist.
In the pictures below, you can see how that metal part in the interior of the strap is exposed. Whereas most NATO straps will embed that side of the minder within the textile loop, so that your wrist only comes in contact with the soft strap material.
That exposed metal was so uncomfortable for me that I ended up cutting off that portion of the strap entirely. I didn't mind breaking out the sewing kit, but you'll have to decide whether:
a) You find this uncomfortable, and to be a dealbreaker that preclude you buying the Omega OEM NATO
b) You find this uncomfortable, but don't doing some work with a sewing kit to cut that piece off and stitch it back together.
c) This design flaw doesn't bother you at all
😀
Have fun picking out a new strap!