The Original Grain Alterra Koa Stonewashed Chrono is handcrafted from Hawaiian Koa wood. It features 5-hand Japanese quartz movement with two subdials and a date window. Metal components are made from stainless steel, and sapphire crystal glass offers a clear view. The combination koa and steel band locks with a fold-over clasp. Features: - 5-Hand Japanese Quartz movement - All-Natural Hawaiian Koa Wood - 316L Stonewashed Silver Stainless Steel - Sapphire Crystal Glass - Water Resistant Casing - Double Locking Fold-Over Clasp