If you splurge, you can get the ceramic model, which (I believe) comes with a ceramic pin in its sports band.
Also, in case nobody told you already, the best watch colors for you should be plain silver aluminum, gold aluminum, and polished steel (apart from the pricier ceramic and now-discontinued 18k gold models). The rose gold aluminum, space gray aluminum, and black-coated steel use nickel in the coloring process, according to Apple (at last that's what I remember).
Do items made from 316L stainless steel normally cause a reaction?