I e-mailed the vendor and explained that they'd shipped model 701 when I ordered model 700, and asked how do I return it for an exchange. They wrote back, asking incredulously, "You wanted the metric version with distance in kilometers and weight in kilograms?"
I got snarky at them and said, "Yes, that's right. That's why I ordered the SW-700, not the SW-701. I'm one of those rare Americans who isn't allergic to Funny Furrin Measurements."
They haven't written back yet. I have this strange feeling that they may not even stock the model 700, because they can't believe an American would want anything that reads in metric. Edit: Except that they appear to be the Canadian distributor as well (see comments below), so maybe they just can't imagine an American wanting one.
What I really want is the model DW-700, which is what I got in Japan, but it appears to be discontinued, with the SW-700 being the next version. It looks the same except that it has the US distributor's branding all over it. It still seems to be the same Yamax Japanese-made pedometer that rates high on all of the reviews and that proved to be very reliable for me.