Seiko Conceptual Chronograph Nylon Strap Black Dial Quartz Ssb421p1 100m Men's Watch

Features: stainless steel case nylon strap quartz movement caliber: 8t67 sapphire crystal black dial analog display chronograph function tachymeter scale luminous hands and markers date display pull out crown screwed case back buckle clasp 100m water resistance approximate case diameter: 39.5mm approximate case thickness: 11.55mm approximate lug width : 20mm