I'm in the middle of modding a 007. I opened the watch and so forth. Popped the crystal out to change the chapter ring. No crystal gasket! Popped the bezel to change the insert. No bezel gasket? Is Seiko getting cheap these days?
Otherwise, the changes are going well aside from a finicky second hand that drags on the minute hand center ring. I'll figure that out as well. At least the watch has a case back gasket!