BERNY Men's Automatic Mechanical Dive Watch, Self-Winding, Sport Silicone Strap, 20ATM Waterproof, Sapphire Glass, Super Luminous

---------------------------------------------------------------------- Automatic Winding Watch: This men's watch uses a Miyota 8205 automatic mechanical movement that provides accurate time and features 21 jewels. The watch is powered by the natural movement of your arm and does not require a battery. It is recommended to wear it for at least 10 hours a day, but if not, you will need to manually wind it at set times to supply energy to the watch. When using it for the first time, turn the crown about 20 times. Durability: Our Berny automatic watch cases are made of hardened brushed stainless steel with a surface hardness of up to HV600. The case back and display lens are made of sapphire glass, providing excellent scratch resistance. The silicone watch strap is completely waterproof. Multifunctional: Day of the week and calendar at 3 o'clock. Screw-down crown. Ultra-bright hour markers and hands. 20 ATM water resistance easily meets everyday water requirements and can also handle swimming, adventure, and even diving-level water resistance. Unique feature: This diver's watch's countdown bezel allows you to measure the remaining time of an event before or after it has started. Service: BERNY has over 25 years of experience in the watch industry. If you have any questions about BERNY watches, please feel free to contact us anytime. We will provide a satisfactory solution.