Ratio Free Diver Chronograph Nylon Quartz Diver's 48HA90 17 CHR BLU var NATO4 200M Men's Watch westar mens Features: Case Bezel Material: Stainless Steel Resin MTP B145SG 7AV Features: Case Bezel Material: Stainless Steel Resin Resin Band Vibration Resistant Neobrite Sapphire Crystal Shock Resistant Screw Lock Crown Mud Resistant Solar Powered Multiband 6 Time Calibration Signal Reception Triple Sensor World Time 29 Time Zones 1 100 Second Stopwatch Countdown Timer 5 Daily Alarms Hourly Time Signal Battery Level Indicator Power Saving Full Auto Calendar (To Year 2099) 12 24 Hour Format Button Operation Tone On Off Regular Timekeeping Accuracy: ±15 Seconds Per Month 200M Water Resistance Size Of Case: 59 111 Sapphire Crystal Blue Dial Analog Display Luminous Hands Date Display Screw Down Crown Solid Case Back Deployment Clasp 100M Water Resistance Approximate Case Diameter: 39mm Approximate Case Thickness: 9mm Features: Stainless Steel Case Nylon Strap Quartz Movement Caliber: MIYOTA OS10 Sapphire Crystal Blue Dial Analog Display Chronograph Function Tachymeter Scale Luminous Hands And Markers Date Display Screw Down Crown Engraved Case Back Buckle Clasp 200M Water Resistance Approximate Case Diameter: 45mm Approximate Case Thickness: 12mm Approximate Lug Width: 22mm