Brand Introduction: OLEVS has been involved in the watch industry for many years,the strong design and development strength, each OLEVS watch craft is designed to make you have a spiritual enjoyment that is beyond the product itself.With its own complete production chain, experienced sales team and after-sales team. We put the quality of our watches and service first, only produce the best quality watches, and provide the most satisfactory service. If you are looking for a cost-effective Watch,or want to give your male friend, this watch will be your best choice, please believe that we will make you satisfied! PRODUCT PARAMETERS Mirror: High hardness coated glass mirror Watchband: Breathable leather / Stainless steel ceramics Movement: Brand original mechanical movement Waterproof: 30 meters waterproof Watch weight: leather 47 G Ceramic 92 G Case diameter: 35 mm Case thickness: 12 mm Chain width: 15 mm Chain length: 22 cm *Tips: All sizes are manually measured, there is a reasonable error, please prevail in kind