Nuevo Acero D1K6AM-BK00 Marinemaster SBDX001 MM300 Prospex expansión Broche de Estados Unidos | eBay
Seiko Mod MM300 SBDX001 Curved End O Boyer Bracelet | Strapcode
Anyone put a Seiko MM300 ratcheting clasp (from my SBBN031 Tuna) on a strapcode bracelet? | WatchUSeek Watch Forums
Question] anyone have experience with aftermarket clasps for seiko bracelets (SPB143)? Even a simple one like the Oris. It works fine, I just find it ugly. : r/Seiko