Case Material: 316L stainless steel case

Strap Material: 316L stainless steel strap

Caseback Material: Stainless steel see-through casebackCrystal Material: Sapphire crystal

Dial: Perpetual calendar, sun, moon and stars, luminous

Clasp: Double-push butterfly clasp

Movement: Self-developed automatic mechanical movementFunctions: Chronograph/Day of the week

Water Resistance: 50M water resistant

Watch Diameter: 42MM      Strap Width: 22MM

 Thickness: 13MM      Watch Weight: 96.6G