Baron - Mr Red
14613
OK...some simple conclusions
So far then, on the basis of the handful of watches I have seen and the examples that Marcello has uncovered.....
1) The serial range 113xxx-114xxx has a standard format with a very typical dial layout., Open 6 standard.
2) 16Xxxx does appear, but it does not have the same dial set-up as the earlier batch and...so far....has not come with a caseback placing it in the correct era.
I think this "2nd batch" theory is a work-in-progress issue, but so far I remain uncomfortable with Red Depth that are not in the 113xxx-114xxx serial range.