Seiko 42mm Series 5 Sport Automatic Day & Date Strap Watch - ShopHQ.com
My first seiko mod, [SNZG11J1] new single domed crystal and a nh36 for hacking and handwinding (I stabbed the balance on the original 7S) : r/SeikoMods
The Better Field Watch: Seiko SNZG11J1 Review (SNZG Series, SNZG) - YouTube