everlasting classic Stainless steel back case (black / silver) Gold-tone plated stainless steel bracelet with deployant-clasp closure high quality electric plated,never fade off Japanese movement: Accurate within seconds per month. Japanese battery for power performance IP electric golden stainless steel watchband Case diameter: 5.3 cm Band width: 2.6 cm Strap length: 24 cm Case thickness: Approx. 1.4cm Weight: 168grams Only for life waterproof, please dont put it into water, dont water Please note that small dials are for decoration only and do not work. dear,you can use the tool to adjust the watchband length for you,dont need go to the watch repaire store,save time and money.