Casio Protrek Digital Silicon Black Dial Solar PRG 30 1 PRG30 1 100M Men's Watch Swiss watches Features: Stainless Steel Case Stainless men's dive watch Features: Stainless Steel Case Stainless Steel Bracelet Quartz Movement Caliber: VD57 Sapphire Crystal Black Dial Analog Display Chronograph Function Luminous Hands And Markers Date Display Pull Push Crown Solid Case Back Deployment Clasp 100M Water Resistance Approximate Case Diameter: 45mm Approximate Case Thickness: 12mm Features: Case Bezel Material: Resin Resin Strap Quartz Movement Caliber: 5605 Mineral Crystal Analog Digital Display LED Light Afterglow Shock Resistant Dual Time Moon Data Tide Graph 1 100 Second Stopwatch Countdown Timer 3 Multi Function Alarms Hourly Time Signal Full Auto Calendar (To Year 2099) 12 24 Hour Display Accuracy: ±30 Seconds Per Month Day And Date Display Solid Case Back Buckle Clasp 100M Water Resistance Approximate Size Of Case: 46 Features: Resin Case Silicon Strap Solar Powered Caliber: 3499 Mineral Crystal Black Dial Digital Display World Time Power Saving LED Backlight Battery Level Indicator 1 10 Second Stopwatch Countdown Timer 5 Daily Alarms Hourly Time Signal Regular Timekeeping Button Operation Tone On Off Full Auto Calendar 12 24 Hours Display Day And Date Display Screwed Case Back Buckle Clasp 100m Water Resistance Approximate Case Diameter: 45mm Approximate Case Thickness: 13mm Approximate Lug Width: 23mm