Men Sports LED Digital Temperature Military Multifunction Watch Casual (Black) Delivery usually takes 7-15 days from China, or a bit longer. due to holidays, and bad weather, customs security check, or the process of the post office during transit. Solid stainless steel back cover. Water resistant. Battery: CR2025 Battery Life: 3 Years Waterproof function, please don't press any button in the water Function: Digital display. Date&Day display. Week display, 24-hours, Alarm clock.Temperature. Chronograph. Stop watch. Back light. Fashionable, very charming for all occasions. Amazing looking watch, a great gift for friends.