Casio G-Shock Men's Digital G-Glide w/Bluetooth Connect 51 mm Case Diameter Stainless Steel Black Bio-based Resin. Inspired by the summer surf scene the bezel is made with two different materials to evoke the look of shimmering waves gleaming in the sunlight. The bezel top in stainless steel with mirror-finished beveled edges contrasts subtly with the glossy translucence of the resin bezel base The band is made of bio-based urethane and has a slit for a better fit and water and sweat runoff. Key resin components used in the band are made with bio-based resin a material expected to help reduce environmental impact. All of this delivers the comfortable wearability youre looking for so you can concentrate on riding the waves. Get full functionality at your fingers with Smartphone Link. Just use the dedicated app to select one of some 3300 major surf spots around the world and send location-specific tide patterns and daylight conditions to the watch. The high-definition MIP LCD also improves visibility and delivers clear tide graph and moon age as well as high/low tide times and levels and sunrise/sunset times all at a glance. This watch is built to help surfers prepare for tough competitions around the world. Specifications for Casio G-Shock Men's Digital G-Glide w/Bluetooth Connect: Manufacturer: Casio Application: Casual Gender: Male Dial Color: Black Illumination Color: White Band/Strap Color: Black Case Color: Clear Marker/Numeral Color: White Battery Type: CR2032 Lithium Metal Case Finish: Flat Case Material: Resin Case Diameter: 51 mm Bezel Finish: Stainless Steel Band/Strap Material: Bio-based Resin Wrist Band Type: Strap Movement: Digital Illumination Type: LED Water Resistance Level: Water Resistant Water Resistant Mark: 200 m Weight: 66 g Shockproof: Yes Features of Casio G-Shock Men's Digital G-Glide w/Bluetooth Connect World Time Stopwatch Countdown Timer 4 Daily Alarms LED Super Bright Backlight 12/24 Hour Formats Moon Data Sunrise and Sunset Data Tide Graph Bluetooth Connect Smartphone Link Training Funciton: Display of distance speed pace and other calculated values based on accelerometer Auto/manual lap times Auto Pause Target alert setting (time calories burned) on/off Training display customization (elapsed time distance pace lap time lap distance lap pace average pace speed average speed calories burned) Package Contents: Casio G-Shock Men's Digital G-Glide w/Bluetooth Connect Casio GBX-100S-1CR: G-Shock Men's Digital G-Glide w/Bluetooth Connect 51 mm Case Diameter Stainless Steel Black Bio-based Resin