It looks like a generic watch box from Amazon that he removed the inserts you put your watches around in each space. Not sure if the exact model but I have one just like it to store watches.

Something like this SONGMICS 20 Watch Box Mens Lockable Organizer Black Display Case with Glass Top UJWB301 https://www.amazon.com/dp/B00UL1DO4C/ref=cm_sw_r_cp_api_glt_fabc_5VKQ0233RFF2DWYSKT59