The Apple Watch Nike+ model will be available at Macy’s, Dick’s Sporting Goods and ‘select Nike retail stores’ starting October 28, according to the company’s website. The watch will cost the same $369 for 38mm and $399 for 42mm as other Apple Watch Series 2 models, but is only available in space gray or silver. The watches come with a perforated sport band that’s exclusive to the Nike+ model and isn’t available…