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! : r/Watchexchange
full set] Seiko Scuba SBDC003 Blumo Automatic Professional Diver Watch Set | eBay
Sold : Seiko 1st gen blue SUMO(Blumo) sbdc003 $280 | The Watch Site
SBDC003] BLUMO : r/Seiko
Seiko Prospex JDM SBDC003 Blue Sumo | WatchCharts Marketplace