This is a very specific model on sale right now at a whopping 125 bucks off its list price, with a 42 mm silver aluminum case and a love-or-hate Nike Sport Loop coated in an interesting combination of bright crimson and black.
This Apple Watch Nike+ Series 3 version is usually priced at a whopping $409, and somehow, B&H is able to mark that down to $284 without cutting any obvious corners. You’re looking at brand-new units here, backed by a standard 1-year warranty, with free shipping included.

If this deal interests you, feel free to follow the above link to B&H. At the time of writing, B&H is observing Shabbat, so delivery will begin on Sunday.