American Design Machine Men's 'Detroit' Quartz Stainless Steel and Silicone Sport Watch, Color:Blue (Model: ADS 4002 BLU) Analog-digital dual time movement, electroluminescence backlight digital display features alarm, stopwatch, lap counter and optional military time 55mm stainless steel case, hardened mineral crystal, IP black, water resistant to 165 FT Japanese-quartz Movement Case Diameter: 55.0mm Water Resistant To 165 Feet