Mondaine Women's 'SBB' Swiss Quartz Stainless Steel Casual Watch, Color:Silver-Toned (Model: A400.30351.16SBM) Scratch resistant sapphire crystal Extra slim, only 6.2mm thick, brushed stainless steel case, 3 bar water proof Swiss-quartz Movement Case Diameter: 36mm Water resistant to 30m (100ft): in general, withstands splashes or brief immersion in water, but not suitable for swimming or bathing