【Material】: CUSN8 bronze case crown buckle,total bronze watch, synthetic sapphire crystal,suede leather band
【Movement】: Japan NH38A automatic movement, 24 jewels, 41 hours of energy storage
【Luminous】: Swiss Super bright luminous backlight, excellent night brightness
【Waterproof】: Water resistance up to 20 ATM / 200 meters / 656 feet
【Total Bronze】: This watch is more bronze than normal bronze watch, the case, the buckle and the crown are total solid bronze.Since the bronze watch is oxidized depending on the environment, it is normal for the watch to have stains, water stains, and the color of the case to become dull after receiving the product and during use.