My Eastern Watch Collection: Seiko Prospex Green Sumo SPB103J1 (similar to SPB101J1) - Continuing the Tradition with Further Improvement Possible, A Review (plus Video)
Seiko Sumo SBDC083 vs King Samurai SRPF79J1 - YouTube
Seiko SPB101J "SUMO" - Full Review - The BEST Seiko you can buy #bestmenswatch - YouTube