Steve: A real rare beauty! I had a nice bubbleback (no hooded lugs) two tone with original black dial just like yours only s.s. bought a new Swiss oyster band for it and wore it for many years. A watchmaker told me that I would wreck it by riding my Harley (the vibration would kill it) I believed him and sold the whole thing for $550. What a fool I was. Getting harder to find parts for the older Rolex autos.