Rip Curl Titanium Tidemaster YGroup_8641552122024 11" carbon fiber race fin 11" carbon fiber race fin with triangle cut out base to minimize weight crafted for coziness and style wakeboarding and scuba diving to normal depths • Swiss built 11 jewell movement • Titanium – non corrosive in a marine environment • Titanium is the ultimate metal for waterproofing and high strength to weight ratio • ATS automatic tide system uses Rip Curl's patented averaging tide system which easily sets to thousands of beaches worldwide • Screw crown provides 4 seals for extreme waterproofing • Jeweled movements synthetic rubies serve as bearings for gears in watches which reduces torque and friction allowing your watch to run more accurately for a longer period of time • Date and time settings • Heat bezel a countdown timer on an analogue watch that keeps track of time for anything from surf heats to the time left on your parking meter • Ideal for water sports like surfing