LONGBO brand watch ten years,shaping high-quality watches,with unique design and comfortable feeling of wearing and people's favorite.Fashion on LONGBO watch,pay close attention to the forefront of fashion.BEST GIFTS TO DEAREST. Specification Dial Case Diameter: 37 mm Case Thickness: 10 mm Band Width: 17 mm Max Band Perimeter: 23 cm Weight: 69.6 g Material Case Material: Alloy Band Material: Ceramic Mirror Surface: Mineral Glass Features 01 WATERPROOF: 3ATM WATER RESISTANT. Every watch had passed strict water resistants test 02 DIAL: EXQUISITE DIAL. Simple and Stylish design dial looks cool and fantastic 03 STRAP: CERAMIC STRAP. The ceramic strap, convenient to open and close, so you have an excellent wear experience 04 BACKCASE: STAINLESS STEEL BACKCASE. Quality stainless steel backcase with engraved brand LOGO NOTE Avoid the use in extreme hot and cold temperature. Clean the strap by a soft cloth on regular bases is highly recommended. Too much water contact will shorter watch life. Perfect for all kinds of sports and daily use, great gifts for family and friends.