This is good gold plating, not easy to fade, gold color lasts long. This watch is 30M waterproof, it is waterproof in daily life, but we don't suggest hot water, swimming or bath. The specifications Case material: stainless steel Case diameter: 44mm Case thickness: 11mm Strap material: stainless steel Strap length (including case): 230mm Strap width: 22mm Movement: Movement Japan Original Quartz 30 Meters Water Resistant