Case Material: 316L stainless steel case

Strap Material: 316L stainless steel strap

Caseback Material: Stainless steel see- caseback

Crystal Material: Sapphire crystal

Dial: Skeleton   Luminous   Real diamond at 12 o'clock

Clasp: Double-push butterfly clasp

Movement NH39 automatic mechanical movement, frequency: 21600 bph

Functions: Chronograph

Water Resistance: 50M water resistant

Watch Diameter:42MM Strap Width: 21MM

Case Thickness: 12MM Watch Weight: 132.4G