G-Shock GSTS110BD-1B G-STEEL All Black Tough Solar WatchG STEEL designs with "layer guard structure" for the active gentleman seeking G Shock's performance and technology standards whom also enjoys the look and feel of a metal timepiece. The GST S110 base model features the hardness and dignity of metal in a bold black on black. A new type of solar panel uses an irregular shape that allows more of the panel surface to be exposed to light, regardless of the current hand positions. Details Shock Resistant