I didn't know I shouldn't move seiko shutter speed while cocked but I did it and when I set it to 1 sec, the shutter opens up more than 10 sec. 1/2, 1/4, 1/8 looks like it opens up longer than it should. I might have broken the little pin that rides against the speed dial but it seems like other speeds works fine 15 to 500.

Is there a way to fix it? Thanks,