Specifications Case Diameter: 48 Mm Case Thickness: 19.6 Mm Case Material: Carbon Fiber Glass: Double Domed K1 Glass With Antireflective Coating (Both Sides) Strap: Double Compression Fkm Buckle: Stainless Steel 316 L Plating: Grade A Ipb (0.6 Mic Tic ±20%, Pvd) Water Resistance: 5 Atm Crown: Push In With Double O-Ring 3H Automatic Movement: Miyota 9015 Stopwatch Quartz Movement: Miyota Js 00 Rim Face Function: 3 Hands Auto Chrono Face Functions: Center Second Hand, 12H Counter (60 Sec Chrono), 4H Counter (30 Minute Chrono), 8H Counter (24H Indicator)