Ebay offers Apple Watch Ultra 3 49mm GPS Cellular Titanium Case w Black Ocean Band for $584.39 (reg. $799) with free shipping. 

Product Description:
This is an Apple Watch Ultra 3 (49mm), featuring both GPS and Cellular connectivity in a durable Titanium Case. It comes with a Black Ocean Band, perfect for rugged use and aquatic activities. This high-end smartwatch is designed for athletes and adventurers, offering advanced features and long battery life.