G Shock GBM 2100 1AER G Steel 44mm Polshorloge Strap: Dark coloured leather strap that Strap: Dark coloured leather strap that is comfortable to wear and provides a classic contrast to the light dial and stainless steel case Swimming and snorkelling pose no problem whatsoever: the watch is water resistant to 30 bar and water resistance up to 20 bar G Shock has stood for shock resistance incorporated throughout the entire construction