Digital compass – 1-degree resolution. Know the wind direction wherever you are (only available in the ultimate oceanserch style.) titanium – the ultimate metal for waterproofing & high strength to weight ratio. titanium is non corrosive in a marine environment for thousands of years. Automatic tide system (ats) – rip curl’s patented averaging tide system. Easily set to thousands of beaches worldwide. Dual time. Light. countdown timer. stopwatch. alarm. date & time. preprogrammed tide function – electronically stored tide charts for 200 preset locations worldwide. Waterproof tested to 200m Poly urethane – repels water, withstands dramatic temperature changes & is highly tear resistant.