men's 40mm automatic mechanical watch fashion 904l all stainless steel ceramic watch folding buckle waterproof super bright sapphire wa, Slivery;brown

suitable for outdoor sports such as running, sports, fishing, dating, new year, christmas, thanksgiving, hollywood, wedding, anniversary, birthday, graduation ceremony, father's day, birthday party, wedding, business activities, gifts, souvenirs we have our own processing plant, we can customize the logo and different styles of watches you want, we also have watch bands and watch cases our watches are divided into different grades, including high-grade watches and ordinary watches need that contact us after receiving the watch, you should rotate it anticlockwise, and then rotate it clockwise for 30 cycles to reserve energy for normal operation. watch power is generated automatically by the movement of your arm. note: please turn the crown clockwise 30-40 full turns when mechanical kinetic energy is insufficient (don't pull the crown out). please wear the watch at least 8 hours every day to keep it work..syi