SRP409J1] recently came across this. I don't much about the watch itself but I know these watches were released to celebrate the 50th anniversary of the Seiko 5. I really like the
Seiko SRP409 - Alpinist's Big Brother | WatchCharts Marketplace
喔~~~這顆SEIKO SRP409J1 能入假文青的法眼嗎...... - Mobile01
Seiko 5 Sport 24 Jewels Automatic SRP409J1 SRP409J SRP409
SSA409J1 | Seiko Watch Corporation
Seiko 5 50th Anniversary - SRP409J | Seiko, 50th anniversary, Luxury watches for men