FEATURES: Style: Men's Tide Watch Colour: Black Case Material: Nylon TR90 case Band Material: Soft and UV-resistant silicone strap Movement: Ultra-thin digital movement Water Resistant: 10 ATM (100m) - suitable for surfing, swimming & snorkelling Solid stainless steel screw down case back 12 24-hour, basic tide indicator, calendar, chronograph and countdown Tide system technology SIZE GUIDE: Case Size: 40mm x 8.4mm Weight: 37g