G-Shock Japan announced the G-STEEL GST-W100G-1BJF and GST-W110BD-1BJF for the Japan domestic market and now Casio has announced the G-STEEL GST-S100G-1B and GST-S110BD-1B models for the rest of Asia and presumably western markets too. These Tough Solar “S” models are essentially the same as their “W” counterparts, but without the Multi-Band 6 radio time sync feature. The GST-S100G-1B (left) has a black resin band and an outer resin bezel and the GST-S110BD-1B (right) has a stainless steel band with a folding clasp lock and an outer stainless steel bezel.
Other common features include shock resistance, 200-meter water resistance, dual-layer bezel, neobrite luminous hands, double LED light, world time, 1/100 second stopwatch, countdown timer, and 5 daily alarms.
A North American release is expected for the GSTS100G-1B and GSTS110BD-1B.
Update: Casio America announced the GSTS100G-1B with a list price of $280 USD and the GSTS110BD-1B with a list price $450 USD.