Mechanical self-winding chronograph movement (Valjoux 7753) Stainless steel case (316L) Screw-in exhibition caseback Water resistant to 100 M (10 ATM 330 ft) Scratch-resistant triple coated anti-reflective sapphire crystal Luminescent hands and hour markers Date Push-Button deployant clasp Soft black leather strap with contrasted stitching Chronograph functions