One of the "Casioak" range, the GA2110ET-2A combines a slim case with an octagon double-molded bezel, decked out in a dark navy blue.
Usually $269, this is a reasonable price from a local retailer.
Also available from Prouds for the same price: https://www.prouds.com.au/mens/watches/g-shock-earth-tone-se…
But casioak model number is GA-2100 this is 2110 ?