I didn't tell you, but a Rolex Explorer II Black Rail dial is an obsession I have. Here is a shot I found on the net several years ago: I will happily credit on request. Back to the 16550 Black Rail... The patina is awesome, and I must say that the lover ...
But some are ok to live as they are only visible when you really search. I love the contrast of tritium white gold surrounds and black glosss. In the GMT range this would be the equivalent. Rich patina under plexi. Bill Below included the radial gmt. ...