Go where the wind takes you with the Navihawk A-T. With Atomic Clock synchronization for superior accuracy, this perpetual calendar chronograph is radio-controlled with world time in 43 cities. This sporty timepiece has a black ion-plated stainless steel case and a polyurethane bracelet with a black dial and is water-resistant to 200 metres. Additional features include a 1/100-second chronograph that measures up to 24 hours, 99-minute countdown timer, 2 alarms, digital backlight display, universal coordinated time (UTC) display, power reserve indicator, and pilot's rotating slide rule dial ring. FEATURES MODEL: JY8035-04E MOVEMENT TECHNOLOGY: U680Eco-DrivePowered by any light source, continuously and sustainably, eliminating the need to replace watch batteries. CASE SIZE (MM): 48 LUG WIDTH (MM): 23 BAND TYPE: Strap Polyurethane CASE MATERIAL: Black Stainless SteelPromaster Crown CRYSTAL: Anti-Reflective Mineral Crystal - Impact and shatter resistant - anti-reflective coating deflects light CLASP: Fold Over Clasp with Hidden Push Button DIAL: Black Power Reserve Indicator WATER-RESISTANCE: WR200/20Bar/660ft (Swimming, Marine Sports) ADDITIONAL FUNCTIONSSynchronized to Atomic Clock for Superior AccuracyAtomic Timekeeping Technology with Synchronized Time Adjustment Available in 43 World Cities1/100-Second Chronograph Measures up to 24 HoursPerpetual CalendarDual Time (Second Time Zone)2 Alarms99-Minute Countdown TimerDigital Backlight DisplayCoordinated Universal Time (UTC) DisplayPower Reserve Indicator