Seiko 5 accuracy July 8, 2019 16 32 64 128 Seiko 5 accuracy reddit Seiko 5 sports accuracy Seiko 5 srpd accuracy Seiko 5 gmt accuracy Adjust seiko 5 accuracy Seiko 5 7s26 accuracy Seiko 5 gmt accuracy reddit Seiko 5 snxs79 accuracy Seiko 5 4r36 accuracy Seiko 5 sports gmt accuracy Seiko 5 automatic 21 jewels accuracy