Anti-corrosion flexible strap for diving watch function
When you are underwater, whether you are moving your arm or operating the instrument, you need to fit the watch firmly to your wrist. At the same time, the water resistance and corrosion resistance of the watch band is particularly important because the chemical components in the seawater cause corrosion to the watch band.
Screw-in slip-off crown for diving watch function
The crown is the only part of the outside world and the movement, making it the easiest place to enter the water. In order to prevent water from entering the movement through the crown, watchmakers have developed a design called a screw-in crown—the joint of the crown is made of a rubberized rubber ring when the crown is tightened. The water is strictly isolated from the watch.
Dive watch function
“Draining” is a very professional function, it is usually used for professional diving watches (waterproof 1000m or more). Since the helium molecules are smaller than the water molecules, when the seawater is under high pressure for a long time, the helium molecules will penetrate into the waterproof watch. After returning to the water surface, the watch will explode because it cannot discharge the high-pressure helium gas in a short time. The sputum valve is developed by the watchmakers for the easy removal of helium. It ensures the balance of pressure inside and outside the watch, ensuring the safe use of the watch. It is divided into manual sputum and automatic sputum.
Diving watch function night light indication
Under dark, dull water, as a basis for underwater reading, all diving watches are equipped with eye-catching luminous hands and scales. Usually, the pointer, scale or surface of the diving watch is coated with fluorescent material and the size of the hands and scales is deliberately enlarged to make it easier for the diver to read.
Diving watch function rotary bezel
The rotating bezel acts as a reminder of the dive time and residual oxygen storage. In general, a canister diving oxygen cylinder can hold for 45 minutes; the rotary bezel uses one-way rotation, the countdown method, the wearer aligns the oxygen usage time with the minute hand, and when the minute hand goes to the bezel “0” scale It is the time when oxygen is used up. Precise timing ensures that the diver calculates the oxygen usage time underwater to ensure safe diving.