Most any band will take the 1.78mm spring bars from my experience. On the other hand, the Seiko Fat Bars will not fit most band other than Seiko specific ones. If you try and use the Seiko Fat Bars on an aftermarket leather, rubber/silicon or metal strap, it will likely not fit the band. Unless you have some reason against it, you can always re-use the spring bars out the watch when you get it. I do know that some people prefer the beefier bars for various reasons. They should work on a vast majority of the bands out there.Yes that helps me much!
Which strap can I use with the 1.78? I'm looking for somethin way softer than that orient / seiko stuff...
would they fit the metal bracelet?
No worries . I was born in Germany. The Mako (Deep) that I have uses 1.5mm with .8mm ends. I have the 1.78mm with .8mm ends in it now.Yes it is, sry I'm from Germany