Robust Nickel free. All Stainless Steel Case and Bracelet. 10ATM water resistant (designed for everyday use including swimming and showering). Premium screw crown system for Unrivalled water and dust protection. Sapphire Crystal (unparalleled scratch resistance). Ionic hard gold plated. Stainless steel case and bracelet (technologically advanced plating technique to ensure lasting beauty). Features big date, sub second hand and alarm.