There are many styles of diving watches available on the market today. Their water resistance ranges from a basic water depth of 10 meters to a deepest 11,000 meters. Not all waterproof watches are marked for diving. A diving watch that is waterproof to 30 meters or 50 meters is just a life-proof type, which means that you do not need to remove it when washing your hands or raining. It is not wise to try to enter the swimming pool with this level of watch. Above 100 meters can be officially called a diving watch. Wristwatches that are 100m or 200m water resistant can be worn for swimming or diving in diving areas. In general, the world record for humans to dive naturally without the aid of diving tools is currently 162 meters, so watches with a water depth of more than 300 meters are suitable for scuba diving and are truly professional deep-sea diving watches. Any waterproof watch cannot be placed in hot water, even if it is water-resistant. The watch is waterproof, but not steam-proof.
Each major watch brand seems to have a professional habit. Although most people have no chance to dive below 50 meters, the brands are still focusing on developing superb diving depth. Bulgari Diagono Professional dive expression to 2000 meters, Panerai Luminor
The Submersible professional diving watch is water-resistant to 2500 meters, and the Bell & Ross Hydromax deep-sea diving watch can even reach 11,000 meters. Many brands have professional diving watches, which make the waterproof depth of the diving watch far exceed the limit that humans can dive.
Deconstruction: Crown and Shoulders
The most convenient place for diving watches to enter the water is the crown, because the crown is the only part that connects the outside and the movement. In order to prevent water from entering the movement through the crown, the producer tried all kinds of methods. A crown called a screw-in type was designed. The crown can be screwed tightly. The joint of the crown has waterproof rubber made of rubber ring. When the crown is tightened, water is tightly isolated from the watch. Although the screw-down crown is reliable, it is extremely inconvenient to use. The only problem is that the threads will be worn, which will reduce the water resistance. This is the crown structure commonly used by diving watch brands today. It is also derived from the classic Rolex design.
The crown is protected by a cap to increase water resistance
Other manufacturers have also developed their own unique crowns: around the 1950s, Mido designed a special waterproof design crown-Aquadura cork-sealed crown system, Mido was embedded in the watch with natural cork Inside the crown to ensure waterproof performance. Since it is cork, why not be afraid of aging? The reason is that the special treatment keeps the cork moist and elastic all year round, even if the crown is not fully pressed, it is still waterproof. The only disadvantage is that this structure does not guarantee deep waterproofing, it is only suitable for waterproofing 50 meters or less. Last year’s Commander Gold Limited Edition is the spirit of excellence from Mido since 1959. It achieves the perfect unity of functionality and reliability. The gold version is a new limited edition series to celebrate the 50th anniversary. The integrated case has no back cover, uses the unique Aquadura cork sealing system, and the built-in cork waterproof device makes the crown waterproof. Although only 30 meters waterproof, it is the highest guarantee of waterproofing in daily life. Panerai designed the bridge-rod-locked crown structure and was patented in 1956. The principle is that by using a lever with a crown to press the crown on the case, the watch’s water resistance is significantly enhanced, and the water resistance has been verified to withstand 1,000 meters of water pressure. To this day, this device is still one of the distinctive signs of Panerai. Luminor models also have a left crown suitable for left-handed operation. The Compressor crown, developed by Jaeger-LeCoultre, uses a compression screw device developed by Jaeger-LeCoultre to compress the space by rotating, so that the sealing rubber pad in the crown is completely watertight, thereby improving water resistance. Designed with red and white arrows, the white arrow indicates that the crown is locked, and the red arrow indicates that the crown has been unscrewed. In addition, the crown of the Cartier Pasha series and the crown of Hamilton’s Frogman diving watch are equipped with a screw-type protective crown with enhanced waterproof performance, and linked to the body with a buckle to prevent accidents. Drop is missing.
Mido’s Pilot’s Watch with Aquadura Sealed Crown System
Maybe people think that the structure of the shoulder pad is only designed for the decoration of the watch. In fact, for the diving watch, the shoulder pad has practical significance. It protects the crown from external forces. Although the screw-locked crown is more durable and waterproof than the ordinary push-in crown, it will still be offset or damaged due to frictional external forces during use. The shoulder pads have a protective effect on this. Currently there are two types of shoulder pads, wrapped and non-wrapped. What we generally see is unwrapped, with a spacer next to the crown to prevent collisions. The other type is to wrap the entire crown, and the entire crown is sealed by a movable device, so that the crown cannot be pulled out, thereby achieving anti-collision purposes. Panerai’s crown protectors are very famous. A large external device locks the crown, which can prevent collisions and accidental collisions. This is extremely important for the wearer, especially in turbid water. under. Another example is the Omega Ploprof coaxial diving watch, which is a replica of the well-known left-hand version of the professional diving watch in the 1970s, which was used by the French Comex submarine surveying company at that time. The crown is located inside the large shoulder guard on the left. When the original design is released, the square protective device on the outside will pop open. At this time, the crown is pulled out, and the date can be quickly adjusted in the first section and the time adjusted in the second section . The crown can be locked into the case if the square protection is pressed in.
The rotating inner ring has always been a patent of IWC
Divers like to carry a small amount of oxygen tanks. In order to reduce the underwater weight, the amount of oxygen is related to the size of the oxygen cylinder. Therefore, people who are familiar with diving equipment will bring a device to measure the amount of oxygen. . The rotating outer ring can be said to be the biggest feature of the diving watch, and it reminds the diving time. The scale of the rotating bezel is 15, 30, 45, because oxygen cylinders for general diving can only adhere to 45 minutes, and some are marked with 60 minutes. The first 15 minutes are color-coded or specially marked, as divers will strictly adhere to a 15-minute safety stop when ascending to completely release the nitrogen absorbed from the cylinder. Normally, just turn the bezel during the dive so that the 0 scale on the bezel is aligned with the minute hand, and then watch the corresponding scale on the bezel after the minute hand moves to know the time spent diving. Of course, you can also count down. First of all, know your dive time. Turn the bezel to align the minute scale with the minute hand, and then the time when the minute hand reaches the 0 scale is exactly your dive time, which means that the position of the 0 scale is your dive. Extreme time.
Divescope Diverscope JR1000 Goldwaters Rotary Inner Watch, the rose gold scale of the circle can show the last 15 minutes of snorkeling time
The rotation of the external bezel is designed in a single counterclockwise direction. This is to ensure that the calculation time is only accounted for more, not accounted for, and to prevent misoperations that prolong the time and cause danger. Professional fluorescent coatings on the scales and numbers make it easy to display under dim light. In recent years, the emerging built-in chronograph bezel has no restriction on the direction of rotation, because the crown that controls the bezel must be locked before launching. For example, the Aquatimer Cousteau of IWC, the built-in chronograph bezel can ensure the reminder function, without the need to make a hole in the case. Another benefit is that there is no need to clean the sediment in the seams of the bezel case after the water is discharged. In fact, only five of the 1,000 people who buy diving watches have the opportunity to dive into 50 meters of water. More than the nominal number, more players love the crisp answer when rotating the bezel. Omega’s Ploprof coaxial diving watch has a rotating outer ring controlled by the orange button attached to the upper right side of the case. It can be rotated clockwise or counterclockwise. This type of diving watch’s outer ring can be rotated in both directions. There is actually no craft on the bezel, but Blancpain’s 50 series single-piece rotating bezel is different. The designer uses sapphire crystal to cover the fluorescent scale (instead of ordinary high-tech ceramics), and has spent many years of hard work to develop an adhesive that binds the fluorescent scale material to the sapphire bezel and metal bezel. And applied for a patent. Rolex uses patented PVD technology to fill the rotating bezel with platinum. Due to the use of a new luminous material that emits blue light, the triangle zero on the scale outer ring is longer visible at night or in the deep sea.
Luminous effect of diving watch
All diving watches are equipped with eye-catching luminous hands and scales. Because divers are often in the dark and deep sea, the hands, scales or surfaces of dive watches are usually coated with fluorescent materials, and the dimensions of the hands and scales are deliberately enlarged. To make it easier for users to read time.
The early luminous material was radium (Radiomir), which was discontinued because it contained excessive radiation. The most commonly used luminous materials today are Super-LumiNova and radon. Super-LumiNova is a new material. It absorbs the gamma particles in the light and stores it. It can emit light for more than 10 hours, but the intensity of the light will decay after a certain period. Controlling night light (also called ‘gas light’) is a big leap in modern night light technology. The use of radon is a glorious tradition for Ball. The advantage is that the self-luminous light is not only bright, but also has a long life-it is said that the life can be as long as 25 years. The principle is to fill gaseous plutonium in a mineral glass tube coated with phosphorescent substance on the inner wall, and use the B-rays of plutonium to excite the phosphorescent substance to generate a cold light source. This type of light source does not emit dazzling light and heat, nor does it burn and explode. The tube wall can block B-rays, as long as the tube is not broken, it is not harmful to people. The radon tube does not require external energy supply or reflection from external light sources, and can maintain a stable and long-lasting light emission for 10 to 20 years. The cymbal yue Ming is marked with 3H illumination and mbmicrotec letters on the back cover of the watch case. All the watch hands and scales in Ball have cymbal yem night (including temperature and second hand). The only bad thing about this is that the hands will be heavy, especially the second hand, which should have a slight impact on the time of the watch. In order to maintain balance, the second hand of the Bol watch has a ‘long tail’ or is composed of two RR ‘Flower Tail.’ Panerai Radiomir’s dial luminous effect is achieved by applying a layer of special paint on the marks and indicators. This paint is a mixture of zinc sulfide, radium bromide and neodymium. This compound, invented and formulated by Panerai, was also a major feature of the sighting and observation instruments produced by Florentine. The powerful lighting effect eliminates the need to borrow auxiliary lighting equipment that may be found by the enemy to illuminate itself in a completely dark environment.