Building on the iconic 2100 octagonal shape is the new Casio G-Shock Octagon GM-2100 Men\'s Watch, boasting a simple yet bold design perfect for any adventure.At A GlancePresented on a black resin strap49.3 x 44.4mm case size with 200m water resistanceStainless steel with a rounded hairline finishDial is treated with a vapour deposition finish for a metallic lookDigital sub dial and second sub dial at 9 o\'clockFunctions such as World Time, Stopwatch and a Timer