From the Amphion collection, this black and white dial with black leather strap watch by Ballast is an impeccable addition to your watch collection. With automatic movement, power reserve indicator and leather strap, this watch is truly a timeless treasure. Automatic Movement with Power Reserve Indicator with Date. Solid Marine Grade 316L Stainless Steel & Caseback. Mineral Crystal with Sapphire Coating and Screw Lock Canteen Crown. Leather Strap with Stainless Steel Buckle. Strap Width: 24mm. Water Resistant up to 100 Meters.