• Case: 100% marine grade stainless steel with screw in case back & hardened mineral crystal. • Function: OceanSearch module – 200 beaches pre-programmed tide, custom beach function easily set to any beach in the world. Future tide, stopwatch, heat timer, alarms, EL light and much more.• Strap: Poly Urethane.• WATERPROOF TESTED: 200m.RIP CURL WATCHES FIVE YEAR LIMITED WARRANTY:Five years on Movements from the date of purchase.Two years on Waterproof from the date of purchase.One year on batteries from the date of purchase.Not covered by any warranty is the glass, band and case. Also not covered is damage caused by general wear and tear or any accidental damage.