The all-new GA-2100 series from G-Shock arrives this year. Like the new GA-2000, the GA-2100 is a Carbon Core Guard model, but unlike other recent carbon models, it has a shock look thanks to its octagonal bezel and its traditional shaped resin bands. The GA-2100 is really inspired by the design and shape of the very first G-Shock DW-5000C, but in a combination of analog and digital forms. At 11.8 millimeters, it's the thinnest G-Shock analog-digital watch on the market.