VK63 Movement Chronograph Watch Mens Watch Sapphire Glass Stainless Steel Water-Resistant Case Luminous VK63

Watch brand: OUMASHIMovement model: VK63 quartz movementMovement functions: chronograph, perpetual calendar, luminous, chronograph, tachometer, 24-hour system, etcShell material: 316L stainless steelShell process: Brushed + polishedBack cover material: 316L stainless steelRear cover type: screw-type solid rear coverCase diameter: 39.3mm (without crown)Box length: 48mm (total length from top to bottom)Shell thickness: 13.5mm (including lens and shell)Case lugs position: 20mm (the connection position between the case and the strap)Watch length: 220mm (total length/circumference)Strap material: Stainless steel strap/rubber strapGlass material: Sapphire glassCrown type: screw-down crownBezel material: Synthetic gemstone bezelBezel size: 39.3 millimetersSurface size: 29 millimetersWaterproof/Diving [Can wash hands, swim and dive, meeting all daily waterproof requirements]Exhaust valve: NonePackaging standard: Professional waterproof plastic box packaging to prevent the watch from being damaged during transportation