You are going to have to share the story behind this one.
In your collection? Best Bill
How is the connection if any to the famous PhilpS version "Prototype 1680".
A Fascinating RED Rolex Submariner Prototype This is an extremely rare Rolex Submariner Prototype [Reference 1680] and it is owned by one of the most fascinating Rolex collectors in the world–Philipp S. Philipp is not only a Rolex collector, he says he is...
Here we have the story by Philip on our site.
I still don't feel comfortable with the proto story. www.watchprosite.com