Spare strap buckle designed and printed for my old Casio G-Shock GW-M5610. The design is not really tight on the strap cause I think is more comfortable like this. I think this design fits most of the standard G-Shocks.
I printed this buckle using Form Futura FlexFil Black in .05mm layer (.10mm would work as well), I used supports.
The author hasn't provided the model origin yet.