SPB101 Sumo] just sharing this wrist shot with other Seiko fans here : r/ Seiko
King Jewelers on Twitter: "With its rugged design and substantial 45mm case, the Prospex #SPB101 and #SPB103 recall Seiko's acclaimed 2007 automatic diver's watch, an immediate favorite of collectors because of its
Seiko - Seiko Prospex diver's watch known to many as the 'Sumo'. This watch has long been a Seiko favorite and it is now updated with a longer power reserve (70 hours)
SEIKO STORY: SEIKO SUMO - What Makes This Watch So Unique – Crafter Blue