The basic paradigm of diving tables
Although today the launch of the brand in the design of a wide variety of water table, water depth can vary from a few hundred meters to several kilometers, but in general remain the same from the beginning to the present development of the accumulation of a number of "fundamental paradigm" It remained unchanged.
Rotatable bezel
When the dive computer has not yet been invented, divers rely solely on dive tables for calculation of dive time. In order to remove even bother underwater operations to be calculated, people invented the rotating bezel. Generally the bezel is only unidirectional rotating counterclockwise, when the wearer dive, 0 is the rotatable bezel is aligned with the minute hand, after watching the minute hand should bezel scale can know the time spent diving. The reason unidirectional rotating counterclockwise, is to ensure that the bezel after being mistakenly hit would increase the dive time sooner rather than, to ensure the safety divers in time (a jar of oxygen can only adhere to 45 minutes) return to the surface.
As the front bezel 15 minutes of scale will be particularly emphasized, it is to remind divers to do 15 minutes in the rising safety stop for diving decompression.
Screw-down crown
By actions to set aside time and tune various features of the crown called Vital watch the biggest lies, and therefore it is particularly important to prevent sticking to its position. So the watchmakers at the junction of the crown joined the waterproof apron made of rubber, the inspiration comes from the household water valve at the rubber pad, when the crown as the nut is tightened, like, water will be strictly isolated watch outside.
Luminous coating
The earliest luminous material is radioactive radium (Radium), Panerai Panerai has a diving watch series name is Radiomir, to commemorate the brand to create a radium-based luminous material Radiomir, this is the Panerai a patent.
Later, with the use of radium was stopped, luminous Super-LumiNova material is to become the most commonly used materials, it can be absorbed, energy is stored and then released, impressive brightness. At the same time, the watch brand BALL Boer developed the "3H micro gas light emitting from the body" unique, without any external energy or rely on light, can emit brighter than conventional luminous paint 100 times higher light, the use of more sustainable over 25 years, from this perspective, BALL dark circles called a tyrant.
Corrosion-resistant strap
True for diving watches, or when a dive into the water table, when it must be a mix of rubber, canvas, synthetic fibers and other materials produced by the strap, so as to afford seawater corrosion-resistant, leather strap and metal Band is on the shore in order to wear beautiful and equipped.
Helium valve
Before returning to the surface to breathe fresh air, after first diver decompression chamber pressure, and pressure of air molecules much smaller than the helium molecules there are a lot of tanks will take the opportunity to penetrate the watch, if not to be discharged in the helium, Watches are likely due to the pressure difference when the explosion occurred divers water. So helium valve is deep-sea diver's watch vital to a device. But in fact, this function is generally the wearer even divers are difficult to spend a lifetime, but with this device, makes you feel like a professional distance is a step closer.
