This Hexad III QR watch band is designed for 19mm watch lug diving or sports watch case. The Hexad 3 watch band collection has fine-tuned average 3.3mm thickness, is more adaptable to thin watch cases, and is less heavy than its predecessor. In addition, this Hexad III Q.R. version metal watch band features integrated quick-release spring bars for a speedy attachment to your timepiece, also further enhance flexibility and comfort. The new refined chamfer edges of each bead come with more delicate angles and are more noticeable, and it bends smoothly following your wrist. Well-made solid 316L stainless steel links are assembled with screws instead of flimsy pins to keep their solidity and stability. Accompany with 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 giving a more massive look. Chamfer double locks diver's buckle is ideal for a watch band with a thickness of approximately 3.5 - 5.0mm. Another awesome aftermarket stainless steel watch band for luxury watches.