This Hamlin Ultra Thin Watch Features A Gold Tone Ion Plated 316 L Surgical Stainless Steel Case And Adjustable Mesh Bracelet, A Silver Sunray Dial With Gold Tone Hands And Indices, Integrated Case Design, Ultra Thin Precision Japanese Movement, Exclusive Double- Curve Case-Design Technology Minimizes Surface Contact With The Wrist Providing Greater Airflow Maximizing Comfort, Hypo-Allergenic And Nickel- Free, Tarnish And Oxidation Resistant, Hardened Mineral Crystal Helps Prevent Scratches On Watch Face, And Is Water Resistant To A Depth Of 100 Feet (3 ATM)