Ref: SP0042Q Case Diameter: 24.5mm Lug to lug: 40mm Thickness: 11mm Band width: 20mm*18mm Weight: Update Case Material: Stainless steel 316L Strap Material: Genuine leather Glass: Sapphire Crystal Luminous: Yes Movement: Japan Quartz Movement Crown: Not Screwed Water Resistance: 50m (5ATM)