Does anyone know if there is a difference between the Black Sport Band with 316L "Space Gray" Stainless Steel Pin and the Black Sport Band with 316L "Space Black" Stainless Steel Pin? The former is the band that can be purchased separately currently, whereas the latter is the band that came originally with the first-generation Space Black Stainless Steel Apple Watch. I like to know if Apple simply "renamed" the pin color from "Space Black" to "Space Gray" to be consistent with the Space Gray aluminum Apple Watch models. If not, did Apple once sell the Black Sport Band with 316L Space Black Stainless Steel Pin as a separate accessory? Does anyone have the part number?