sports watch multifunction automatic mechanical wristwatch

Hot sale men's sports watch waterproof multifunction automatic mechanical wristwatch diving watch shell visible movement An automatic mechanical wristwatch, often referred to simply as an automatic watch, is a timepiece that operates without the need for a battery or manual winding. It is powered by the natural motion of the wearer's wrist. Inside the watch, there is a complex system of gears, springs, and a rotor. As the wearer moves their wrist throughout the day, the rotor spins, which in turn winds the mainspring. The mainspring stores the energy needed to power the watch and keeps it running smoothly. We Support Custom CNC Machining Parts of Most Materials (Non-Standard Parts) Quotation According to your drawing(size, material, thickness,…