Upgrade the retro look you love with the octagonal Casio G-Shock GA-2100 line, which inherits the design concept of the very first G-Shock, but now with Smartphone Link and Tough Solar power. Bold in design, this model features a black carbon fiber-reinforced interior case and matching black resin band. The dual-layer dial construction highlights the dimensionality of the LCD and inset dial and meticulous attention to detail gives the dial a look of enhanced texture. Shock ResistantTough Solar (solar powered)Smartphone LinkCarbon Core Guard structureCase/bezel material: Carbon/ResinMineral GlassDouble LED light (Super Illuminator)Hand shift featureWorld time (38 cities)1/100-second stopwatchCountdown timer5 daily alarmsHourly time signalFull auto-calendarDate format setting (date/month swapping)12/24-hour formatResin band200-meter water resistanceBattery level indicatorCase size: 48.5 × 45.4 × 11.9 mmCasio G-Shock Style #: GAB2100-1A