eBay Finds: Eterna Sonic Sevenday Tuning Fork, Seiko SUMO, and More - Worn & Wound
WTS] The Ultimate Blue-mo! - A Seiko "Sumo" ref. SBDC003 with Sapphire, Ceramic, Automatic 6R Movement, OEM Bracelet, and Full Box and Papers, Just $399 Shipped! | WatchCharts
Seiko Prospex SBDC003 first generation Blue Sumo Scuba Diver Watch | eBay
Seiko Prospex SBDC003 first generation Blue Sumo Scuba Diver Watch | eBay
Seiko SBDC 003 Blue Dial SUMO | eBay
Seiko Sea Urchin, Sumo, Shogun, Monster - Orient Kamasu, Mako/Ray Low Double Dome Sapphire Crystal - CT020 - Crystaltimes USA