G-Shock Duo/Chrono Casioak Carbon Core Watch - GA2100-4A DNR It features a pear cut

It features a pear cut Amethyst in a bezel setting with a millgrain edge in the centre

MODEL NUMBER: NR36SILEBLXX

MODEL NUMBER: AI6007-SS002-731-1

automatic movement with 41-hour power reserve and 50m water resistance

MODEL NUMBER: JY8146-54E

G-Shock Duo/Chrono Casioak Carbon Core Watch - GA2100-4A DNR It features a pear cutDUO CHRONO: A high function combination of digital and chronograph models featuring G SHOCK resistance and versatile utility THE CASIOAK: The nickname of the case shape given by G SHOCK fans to this time piece as its case shape resembles certain models from another brand CARBON CORE: These new models offer an attractively thin configuration. They inherit the octagon form that was employed for the original DW 5000C. Analog digital timekeeping comes