Movement: Original Caliber Seagull ST1901 Hand-winding Chronograph Movement, 21 jewels Glass Material: Sapphire Case Material: 316L Stainless Steel Case Diameter: 40mm Case Thickness: 14.50mm Band: Green NATO Nylon Strap + Brown Leather Strap Water Resistance: 3 ATM Lug to Lug: 50mm
