Thanks for the help! Ice Diver with Strapcode jubilee and ceramic bezel insert (finally) : r/SeikoMods
Sumo Mk2 Red T Black Ceramic Insert for Seiko SUMO • Works perfectly with both Seiko original crystal & DLW Sapphire Double Dome Crystal • Launched last... | By DLW Watches | Facebook
Ceramic Insert - Sumo Yacht Master Black - DLW WATCHES
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SEIKO - SPB101 - PROSPEX SUMO - 3RD GENERATION - BLACK BEZEL PT# 86016956 - for sale online | eBay