NFW dude!
We're C-ing a rise in popularity of C-cases.
It's a caliber 751, and that's what we call a linen dial.
The serrated bezel is called knurled (coined by Desmond I suspect) and that should be a 168.029 (2 for knurled bezel, 9 for day/date). If it were a date only, it would have a 564 and be a 168.027 (7 for date). The 168.017 and 168.019 are smooth bezels with starburst finishes radiating as if from the center pinion.
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