1982 JDM Seiko 7A28-7050 Speed Master “Driver” (Rotating Case),7A28-7050] Something unique for today. Seiko 7a28-7050 Speedmaster Chronograph from 1983. Designed by hall of fame car designer Giorgetto Giugiaro. Rotating case feature for better visibility while driving. : r/ Seiko,SEIKO 7A28-7050 SPEEDMASTER | watchshop L,SEIKO 7A28-7050 SPEEDMASTER | watchshop L,[WTS] Seiko 7A28-7050 Speedmaster from 1983. One Quick Twist and it Becomes a Driver’s Watch! Pointless? Yes. Fun? Also Yes.,