Seiko Prospex SBDC003 first generation Blue Sumo Scuba Diver Watch | eBay
Complete guide to the Seiko Sumo
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