It's an excellent work that has been upgraded with your favorite parts without losing the original feeling! It's astringent! ^^ First of all, replacement parts、SEIKO genuine products、Belt is 48A2JG solid stainless steel belt, S-shaped engraved crown is for SARB059, etc., Japanese car, machine is NH36、Other double dome sapphire glass, chapter ring, coin edge bezel, ceramic insert, plain stainless steel case back is SEIKO MODS。