Wilier Zero9 bottom bracket
A quick Google search suggests it's a BB386Evo. Do you see that number, or maybe just a "386" stamped anywhere on it? 

Further confirmation: 

https://machiine.com/2017/the-wilier-triestina-zero-9/

https://www.racycles.com/product/detail/5707

That last link makes it sound like it's a custom BB:

"The bottom bracket standard is the Wilier co-designed BB386EVO, designed for 30mm diameter thru-axles and 86mm wide bottom bracket shells"