This is an interesting one. The S58 allegedly refers to being made in 1958 and as Lou says, doesn't usually have a case number. I have always been sceptical about the ones you see with 133.8 movements, purely because Rossler only mentions them being made with the 120 movement (and that is hand wound). At least the 133.8 would fit with the year.
As I see this one, it has a case number from the mid 60s and a movement from the same period which leads me to call the authenticity of the dial and the S58 on the case back into question.
I could be completely wrong but more than one irregularity........
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