Just started this mod - stealth Seiko 5 with a YM bezel insert with a double domed sapphire crystal with no beveled edge so it lays flush. Waiting on a new dial
Genuine Srpd79 Aluminum Bezel Insert Flat Matte Black Seiko 5 SRPD for sale online | eBay
Watch Mods: Replacing a Seiko Bezel Insert | Feldmar