Thian, thanks a lot for showing these to us, and telling us about them like this.
There are so many different Seikos, and there is always something new to find
out. Even when they are vintage like these here. I like seeing how brands did
things years ago, and then seeing the differences, and similarities to what they
might build today. These two are FANTASTIC here in so many ways. ..Thanks
for the info, and of course your incredible pictures TOO !