Glittering On The Wrist In The Darkness

Piaget’s new Limelight Paradise series Altiplano watch launched in 2009
Mother-of-pearl dial decorated with silver and overall luminous coral
    The appearance of the watch is to facilitate people’s lives, but reading the time in a dark place is still very troublesome, and other light sources must be used. Of course, the minute repeater can partially solve this problem, but intuitively seeing time is still one of the important reasons why people like watches. Therefore, some people began to apply fluorescent materials on the hour and scale of the hands and dials so that the time can be easily read at night.
Ball’s Engineer Master II Diver GMT dive watch. Bohr’s method is to seal radon as a pure gas in a hollow mineralized glass. The inner wall of the glass is coated with a layer of luminescent paint, which is excited by the radon to emit light.

principle

    The phenomenon of material luminescence is generally divided into two categories: one is that the material is heated to generate heat radiation and emit light; the other is that the material is excited to absorb energy and then transition to an excited state (unstable state) and then return to the ground state. Releases energy. The use of fluorescent coatings on watches uses the second type of principle, that is, fluorescent materials emit light when excited. Of course, other than that, such as fluorescent lamps for daily use, fluorescent screens on televisions and computers are the second type of light emitting principle.

Citizen’s Eco-Drive Super Sky Eagle’s luminous is made of environmentally friendly materials

kind

    Traditional fluorescent coating materials can be divided into two types: self-luminous and light-storing. Self-luminous fluorescent agents mostly rely on self-carrying traces of radioactive substances to release light to excite the fluorescent agent to emit light. The light-storing fluorescent agent basically does not contain radioactive materials, but it needs to absorb and store sufficient external light in advance to transfer its electrons from a low energy level to a high energy level and store it. When the surrounding environment is dark, it gradually releases the absorbed energy gradually. At this time, the electrons transition from a high energy level to a low energy level, and the fluorescent agent starts to emit light. Since the light-storing type itself does not carry ray-excitation materials, the persistence of afterglow is temporarily inferior to that of the self-emitting type.

Bell & Rose’s BR01 simple dial features large coated hour markers

Several early common fluorescent coating materials

    Early relatively common fluorescent coatings used radioactive radium salts as activators. Due to their own radioactivity, they have been gradually restricted in use, and have now gradually been phased out. At present, the excitation materials are generally fluorescent agents containing thorium (3H or T), thorium (Pm), and radioactive radium sulfate (Ra), and the fluorescent agents are mostly zinc sulfide, calcium sulfide or strontium sulfide, and other zinc sulfites. Although thorium (3H or T) and thorium (Pm) are still radioactive, the potential damage to the human body is much smaller.

    Thorium (3H or T) is an isotope of hydrogen. The nucleus is composed of one proton and two neutrons. It is radioactive and undergoes beta decay with a half-life of 12.43 years. Although plutonium (3H or T) is also a material for making thermonuclear weapons, its beta decay will only release high-speed moving electrons and will not penetrate the human body. Only a large amount of contact and inhalation of plutonium (3H or T) will cause harm to the human body. hurt. Phosphorus (3H or T) fluorescent agents use high-speed electrons released in beta decay to excite luminescent substances. In addition, plutonium (Pm) is a fluorescent radioactive stimulant similar to plutonium (3H or T), with a half-life of 17.7 years.

Vickers military watch Airboss limited chronograph, dense timescales and scales are coated with fluorescent material

    Due to its own radioactivity, the application of radioactive components such as plutonium (3H or T) in fluorescent agents has been strictly regulated many times in the world. According to ISO3157, activated fluorescent coating materials using thorium (3H or T) and thorium (Pm) must be marked with T or Pm, indicating that their radioactivity is less than 227 MBq (7.5 m Ci). In addition, for watches such as flight watches or diving watches, when the radioactive coating on the dial is highly radioactive, the critical dose T & lt; 25, or T25, Pm 0.5, etc. must be marked, indicating that its radioactivity is less than 925MBq (25mCi). For most watches, the trace amount of radiation emitted by the fluorescent agent will be absorbed and blocked by the metal case and the ore mirror, but these rays can still penetrate the traditional acrylic glass mirror. Therefore, some early military watches will have prominent warning signs, such as H3 or T with an outer ring to warn, please do not continue to wear when the mirror is broken. In addition, the use of radioactive radium sulfate (Ra) is strictly restricted, and is generally only used in aviation instruments and deep-dive instruments.

Rolex’s Oyster Perpetual Sea-Dweller DeepSea uses a special luminous material with a longer luminous time. Moreover, its blue luster can easily read the time even under the sea bottom at 3900 meters. Modern non-radio fluorescent material

    Since the 1990s, with the development of science and technology, a new type of long afterglow light-storing rare earth-based alkaline earth aluminate fluorescent material that does not contain radioactive materials has appeared. It is fundamentally different from traditional sulfide and radiation-excited noctilucent materials. It does not contain any harmful elements at all. It has more stable chemical properties, high brightness, and long afterglow time. Long afterglow energy storage luminescent material is a kind of photoluminescence material that can be excited by any kind of light energy such as sunlight and light. The basic luminescence principle is: during the material preparation process, the doped element forms a luminous center and a trap center in the matrix. When excited by external light, the ground state electrons of the luminous center transition to the excited state, and when these electrons transition from the excited state When returning to the ground state, luminescence is formed. At the same time, some electrons fall into the trap center when they are stimulated and are bound to complete the energy reserve. After the light is removed, the electrons bound to the trap jump out of the trap and fall to the ground state due to the disturbance of the ambient temperature. The released energy excites the luminous center to form luminescence. Because the electrons bound to the trap gradually jump out of the trap due to the disturbance of the ambient temperature, the light emission appears as a long process, which forms a long afterglow.

Tissot’s Starfish Diving 1000 automatic watch, the fluorescent coating on the time scale is designed as Tissot’s signature ‘T’

    Among them, Nemoto and Co Ltd.’s registered patented technologies, Luminova and Superluminova, are widely used in watchmaking. Many watch manufacturers are now gradually adopting these new fluorescent materials, and the ‘T SWISS MADE T’, which once dominated at 6 o’clock on most dials, has gradually changed to a ‘SWISS MADE’ that indicates that it no longer has radioactive material. After the new type of fluorescent material is irradiated by strong light, the afterglow effect will last for several or even ten hours.

Love Is Like ‘gold’, Thanks For ‘watch’ – Swiss Mido Belem Celli Rose Gold Pair Watch

When it comes to Thanksgiving, there is nothing more appropriate than ‘gold’ to interpret its rich meaning: it is bright and attractive, like the precious food on the Thanksgiving table; it is precious and priceless, just like The immeasurable deep friendship between you and your friends; it has a long lasting light, like the long-lasting warmth and gratitude between your loved ones and partners; it is deep and heavy, and represents a kindness like a mountain, and time will never pass away. This Thanksgiving Day, remember the moment of touching with the hands wrapped in love, listen to the pure voice from the heart with the sincerely cast movement, the Swiss Mido Berenceli rose gold pair watch with you To the great love, pass the golden thanks to those who have supported and accompanied you.

 At the beginning of the 17th century, the Mayflower survivors, who had gone through nine lives, set foot on the American continent. They have no relatives, and they are tortured by hunger and illness. During the funeral, the Indians banged on their door, taught them planting techniques, and gave them seeds and food. In the fall of the following year, golden corn and wheat were scattered throughout the once desolate land. The Puritans who were out of trouble lit the bonfire for the festival and gave the harvest as a gift, thanking the Indian angels for their selfless help. Today, the color of the harvest continues on Thanksgiving. Turkey, pumpkin ravioli, tortillas … The traditional dishes on the Thanksgiving table all penetrate the joy, purity and preciousness represented by gold, while the Puritans and Indians Simple love has also become the theme of Thanksgiving for centuries.

 The pure gold luster of rose gold and the simple design style of the Mido Berencelli series rose gold watch is undoubtedly the true feedback to this Thanksgiving. Inspired by the neoclassical classic architecture of the Rennes Opera House in France, the Belem Celli series discards luxury and complexity, and restores the most natural and pure side of the design. The natural silhouette symbolizes the simple and precious friendship between Puritans and Indians. ; The stainless steel PVD rose gold-plated stainless steel case shows a reddish and gold light, like the mature and full wheat waves in the sunset, and the festive bonfire swaying at night in the 17th century American continent; listen quietly, the ticking sound of precise movement is like the poet’s Whimpering, whispering about the moving chapter engraved on the scroll of history.

 Thanksgiving is no longer just the patent of the American and Canadian people. In the late autumn season, stories of thanksgiving are also being performed on the eastern land on the other side of the ocean. At the dining table, his wife looked at her gobbling husband with a smile, but her eyes were full of tears: He worked so hard for decades at home, he was really tired. At night, she quietly put a watch on the bed. This was what her husband had always wanted but could n’t buy: the stainless steel PVD rose gold-plated case was warm, strong and elegant, like a very deep sleeper; clear and flawless The double-sided anti-dazzling sapphire mirror is just like his feelings for her and the entire family. It is sincere and clear and contains no trace of impurities; the black calfskin strap is wrapped around the lugs exuding rose gold halo, which is his affectionate Arms with strength; diamond-cut polished rose gold-plated hands, water-resistant to 50 meters, 38-hour power reserve, carefully crafted movement, inheriting the meticulous craftsmanship of the Swiss watchmaking industry, the Mido Berencelli series of men’s watches will This is a deep and deep condensed.

 Early in the morning, her husband’s sleepy eyes were awakened by the light golden halo of the morning light, holding the gift on the bedside, he peteringly looked at her next to her. Once upon a time, housework hardened her with frost on her forehead. Perseverance, virtuous family, how to repay this affectionate? He hid a golden color in her purse-the beauty and dignity of the Rennes Opera House, like her in a dream, and the gentleness and chicness of the Paris Opera House, but with a unique and simple charm; wrapped in PVD rose gold The stainless steel case is soft and lustrous, and the sunray dial is like her eyes full of love, bearing the affection of each other; the diamond-cut hands outline the historical trajectory passed by tonight and past; the date at three o’clock The window is engraved with her every effort; 38-hour power reserve and 50 meters water resistance achieve her excellence; the black calfskin strap makes her low-key and noble temperament, the most chic Belenceli rose gold ladies watch is dedicated to She has always supported her wife silently, thanking her for her kindness and selflessness.

 After all, the autumn wind cannot hide the warmth that touches the bottom of the golden light. Are you ready to send golden blessings to those who have helped you and accompany you in this grateful holiday?
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TECHNICAL INFORMATION
Technical Information
Mido Berencelli Rose Gold Men’s Watch
Movement ETA2671 mechanical movement, 7¾’’, diameter 17.20mm, thickness 4.80mm, 25 diamonds, 28,800 swings / hour, INCABLOC and NIVACOURBE anti-vibration system, Nivaflex No mainspring, ANACHRON spring Hours, minutes, seconds, date and week are displayed. More than 38 hours of power reserve
Case 316L stainless steel PVD rose gold plated, diameter 38mm, double-sided anti-glare sapphire mirror, engraved serial number, 50 meters waterproof
Strap Black calf leather strap with PVD rose gold folding buckle
Dial Sun rays, date window at 3 o’clock
Hands Diamond Polished PVD Rose Gold
Retail Price 6,200 RMB

Mido Berencelli Rose Gold Women’s Watch
Movement ETA2671 mechanical movement, 7¾’’, diameter 17.20mm, thickness 4.80mm, 25 diamonds, 28,800 swings / hour, INCABLOC and NIVACOURBE anti-vibration system, NIVAFLEX NO mainspring, ANACHRON spring. Hours, minutes, seconds, date and week are displayed. More than 38 hours of power reserve
Case 316L stainless steel PVD rose gold plated, diameter 29m, double-sided anti-glare sapphire mirror, engraved serial number, 50 meters waterproof
Strap Black calf leather strap with PVD rose gold folding watch
Dial Sun rays, date window at 4:30
Hands Diamond Polished PVD Rose Gold
Retail Price 6,200 RMB