Precise Swiss-Quartz movement, Domed, scratch-resistant sapphire crystal with anti-reflective treatment, Case diameter: 36.2 mm Date function Water-resistant to 500 feet
Swiss Automatic movement Functions without a battery Anti-reflective scratch-resistant Case diameter: 38 mm Stainless-steel case; Blue dial Water-resistant to 300M
Swiss quartz movement Anti-reflective crystal Case diameter: 38.4 mm Stainless-steel case 20-micron gold-plated bezel Diving extension system Water-resistant to 984 feet