The GWX-5700CS is hiding a great square module inside. : r/gshock
G-Shock G-LIDE GWX-5700 Tough Solar/Multi-Band 6 with Tide
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Casio G-Shock G-LIDE Multi-Band 6 Solar Moon Tide Graph Watch GWX-5700CS-1, GWX5700CS | Casio g shock, G shock, Casio
G-Shock G-LIDE GWX-5700 Tough Solar/Multi-Band 6 with Tide