Casio's resin-band G-Steel GST-B1000-1AJF and GST-B1000-2AJF left preorder and are now on sale in Japan at ¥60,500 (~$382). At 58 grams, they weigh half the metal versions, share the same case, Tough Solar and Bluetooth. 4 Reviews ← exclude selected types ← exclude selected tagsCasio's resin-band G-Steel has also cleared its preorder window, alongside the Oceanus and Edifice models. Both metal versions weigh 118 grams; this one, with a bio-based resin band, drops the total to 58. Everything else stays the same: the 46.9 × 44.2 × 11.6 mm case, the carbon fiber-reinforced resin core, the metal bezel guarding it, and 200 meters of water resistance.