Don't know, just never really bonded with them... There was always something missing.
In summary, the older/more entry level iterations only had Hardlex and were generally too large, when microbrands are available at a better value when you factor in modding costs to resolve some of these potential issues.. Then the newer iterations are priced higher, yet QC remains erratic - it's become a joke that if your Seiko chapter ring and bezel are aligned, it means that it should have failed factory inspection.
I think Seiko to me is just a brand that has nice stuff, but always drops the ball in some ways, whether it is design, materials or QC. To be fair, I think they are addressing the demand for design/materials but that means it's also really lost its edge for value. Some detailed examples:
1) I really, really liked the SPB143 and the design/size, but the bracelet which claims to have hard coating scratched so easily. I say this having tried other Seikos with the same coating, and honestly, can't help but feel that maybe some corners have been cut in between despite pricing going up.
2) I also really really liked the MM Quartz Tuna (SBBN031), but crystal is hardlex. Then while the new version has sapphire, its hands look so cheap (being edged in white, when silver would have been the better choice).. I suppose I could buy and mod, but that's just a bit silly for a watch that is $1K+.
These days, I think it is a better bet for value if you go for a microbrand with Seiko movements, lol. Or Orient... Orient is the new Seiko to me.