Bestbuy offers Apple Watch Ultra (GPS + Cellular) 49mm Titanium Case with Green Alpine Loop - Medium - Titanium for $599 (orig. $799) free shipping.

Product Description:
The most rugged and capable Apple Watch ever, designed for exploration, adventure, and endurance. With a 49mm aerospace-grade titanium case, extra-long battery life,¹ specialized apps that work with the advanced sensors, and a new customizable Action button. See Dimension section below for band sizing information.