The analog GA-2100 is among the lightest and smallest G-Shocks available, which has been achieved with the Carbon Core Guard. This allows the structural components to be reduced in size while achieving at least the same strength, probably better. These watches are extremely popular for a reason, and people modify them with custom accessories made by other manufacturers. It's a solid choice if you want an affordable G-Shock with an analog display.
GA-2100 combines the simplicity and spirit of the first analog G-Shock, the AW500, with the octagonal "Casio Square" shape of the first ever G-Shock, the DW5000C. Despite drawing from Casio's own history, the GA-2100 bears a resemblance to another famous watch, which has led people to call this the CasiOak. The watch – like all Analog / Digital Casios – has a hand shift feature that reveals the display in case it's block o' clock. Just press Mode and Light together.