SPECIFICATIONS: Case: 45.5mm CuSn8 Bronze Case + Helium Escape Valve Movement: SII NH35 Automatic Movement Water Resistance: 500m (1650ft) / 50ATM Crown: Screw-down crown with custom embossed BOLDR logo Bezel: 120-click unidirectional bezel in CuSn8 bronze with aluminium insert and Swiss Old Radium Superluminova Dial & Hands: Textured dial with applied indexes and polished hands with Swiss Old Radium Superluminova Lens: Double dome sapphire crystal with Inner-side Anti-Reflective coating Strap: Custom italian leather strap with bronze buckle Case Thickness: 16mm Lug size: 22mm Lug to lug: 52mm Case Back: Single-piece screw down caseback with embossed limited edition artwork