Kanmuri-san no Tokei Koubou - Vol. 2 Ch. 8 - The Memories of The Two of Us

[MangaDex]

 

[BanzaiYuri]

I like that some editor probably got tired of Hiwatari-sensei nerding out about watchmaking so just put a hand out "you're a mangaka, just make a manga to nerd out about this!" 😁