Super Engineer II watch bracelet is composed by 5 chamfer edge well-made solid 316L stainless steel units. This replacement bracelet is designing for Seiko MM300 Prospex Marinemaster SBDX001/SBDX003/SBDX005/SBDX017 models. Considering the comfort and sustainability, it bends smoothly following your wrist. Well-made solid 316L stainless steel links are assembled with screws instead of flimsy pins to keep its solidity and stability. Item also included one pair of FAT spring bar (eg. generic Seiko Dia. 2.5mm spring bar) to ensure the watch band is connected securely with your watch. Accompanied with 2015 new released V-Clasp double lock buttoned diver's clasp. V-Clasp was made from solid 316L stainless steel with extra 6 micro holes for flexible fine tune length adjustment. Featured in V shape safety lock, streamlined form & chamfer edged design to giving a more massive look. Chamfer double locks diver's buckle is ideal for watch band with thickness approximate 4.0 - 5.0mm. Super Engineer II watch bracelet is a good choice of Seiko replacement watch band for your MM300 Prospex Marinemaster SBDX001/SBDX003/SBDX005/SBDX017 models.