Movement: Quartz Calendar movement and high quality battery keep time accurate and long running; ◉ Waterproof: Waterproof up to 30ATM, can withstand hand washing, rain or splashing water, but not suitable for showering, diving, snorkeling or water related work; ◉ Durable: Highly transparent hardened mineral glass for scratch protection. The surface plated case never fades. Leather strap with delicate and convenient buckle for easy wearing or adjustment; ◉ Design: luminous square studs, atmospheric Arabic numerals, 2 scales, strong blessing of the vibrant sun pattern dial, providing multiple reading dimensions, abstract aircraft design at 12 o'clock, grasping the throbbing of passionate youth, integrating flight elements into pioneer timepieces, carrying The fearless style of the windbreaker roaming the sky