From G-Shock the watch that delivers the ultimate in modern personal timekeeping comes the GULFMAN. A model that packs powerful features and functions into a tough rust-resistant configuration. All external metal parts including screws back cover buckle and even button shafts are made of titanium alloy for total protection even in seawater environments. The band is secured to the case by milled titanium alloy screws while the form of the forged titanium alloy back provides outstanding impact resistance. The band is configured so it does not adhere to the wrist when wet. Features: Mineral Crystal Glass 200m Water Resistant Shock Resistant Low Temperature Resistant (-20 C/-4 F) Case / Bezel Material: Resin Band Material: Resin Electro-luminescent backlight Tide Graph for current tide conditions at a glance Tide graph (tide level for specific date and time) Moon Phase Graph for graphic display of moon phases Moon data (moon age of the input data moon phase graph) Flash alert flashes with buzzer that sounds for alarms hourly time signal countdown timer time up alarm countdown timer progress beeper and stopwatch auto start Multi-function alarms: 3 independent multi-function alarms (2 one-time alarms and 1 snooze alarm) World time: 29 time zones (48 cities) city code display daylight saving on/off Stopwatch: 1/100-second stopwatch measuring capacity: 23:59'59.99'' measuring modes: Elapsed time split time 1st-2nd place times and 5-second countdown auto start Countdown timer: range 24 hours start time setting range: 1 minute to 24 hours (1-minute increments and 1-hour increments) auto-repeat progress and beeper on/off Auto Calendar (pre-programmed until the year 2099) Accuracy: +/-15 seconds per month Size: 51.0 x 46.0 x 16.4mm Weight: 53g Approximate battery life of 7 Years Battery CR2025 2 Year Warranty