Thinking of a trade and need some expert thoughts.

[Joemck]

You need to service the 16710; otherwise it's worthless. That said, I agree with the "keep & add" group. As to which deep sea, the D blue dial is amazing. In addition to the domed crystal, and the technological achievements of the watch, the dial was the thing that captured my attention. Ultimately I let it go due to case thickness. For me that became an issue in a small collection. For that reason, I also suggest checking out the sd43.