I just counted 8 Seikos, four of them quartz, four of them Grand.
I do not have a Diver Seiko but I hope I'll get a SLA023J1 Blue Dial soon.
No quartz GS, but I have a 28800, a 36000, and a SpringDrive up until now. There is a Citizen Chronomaster taking the Quartz's place now.
My favorite is the GS SBGR 307. It is so no-nonsense and businesslike: totally unlike me.
I paid a bit too much but saved on the customs.
And I got to know interesting people on the side.