Model Number:NF5017 Water Resistant:3ATM Plating Technique:Environmental Vacuum Plating Warranty Period:1 Year Weight:67Gram Total Length:21.5 CM Diameter:36.5 mm Case Thickness:8.1 mm Case Material:Zinc Alloy, Case Shape:Rounded Crystal:Hardened Mineral Glass Movement Type:Quartz Analog Movement Partner:Seiko Instrument Inc Strap Material:Stainless Steel Strap Clasp Type: Folding Clasp with Safety Strap Width at Buckle:13 mm Lug Width:14 mm