Zenith cal. 120 Anyone know the model?

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Full disclosure: I'm selling this watch. I bought it because I liked the fried dial but it gets no wrist time. It has a cal 120 but that's all I know. Anyone know the model? I'll do my own research on value; I just need to know what I have. I'm thinking Sporto but I'd like some confirmation.
The case is 34.5mm and the lugs are 18mm. Based on the serial number, it appears to be from about 1960.
Any other info is appreciated.
Edited:
 
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I don't think it is a Sporto. These all had the plastic dust cover and this one does not have the screw holes for securing a cover.

I think it is one of the ubiquitous Zenith models. The 120 is a lovely movement and the hacking mechanism is quite something (it was Zenith's first)

Here is my 120 Sporto:


Unfortunately I didn't take any photos when I serviced it.
 
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Thanks. I was hoping that wasn't the case because I like to provide a few details about what I'm selling, rather than using a bunch of useless, flowery language to make it sound better than it really is.