Category Archives: second-hand

　　Rolex watches, as a representative of luxury goods in the watch industry, are not only sought after by watch fans all over the world for their accurate timekeeping and unique design, but also the polishing technology of their movements is amazing. Among many complicated mechanical parts, the movement is the soul of the watch, which drives the whole mechanical system like a heart. So, how is the movement of Rolex watches polished? Next, let’s unveil this mystery.This means that 5524r It is the weather vane of the industry and can bring people great self-confidence. https://finewatchcare.com/products/fwc-watch-protective-film-for-patek-philippe-grand-complications-42-5524r-001?_pos=2&_sid=a860552c6&_ss=r

　　Preparation before grinding

　　Before starting to polish the movement, it is necessary to ensure that the working environment is clean and dust-free. After all, any tiny dust may cause irreversible damage to the precise movement. Then, it is very important to choose the right tools and materials. The polishing tools used in Rolex watch movements are often customized by hand, and each tool has its specific function and shape to meet the needs of different parts.

　　Fine hand grinding

　　The polishing process of Rolex movement is a delicate and artistic process. Craftsmen use abrasives and files of various shapes to slide gently on the metal surface, and control the angle and strength of each knife and contact through delicate touch. This is not only a technical activity, but also an artistic expression of the ultimate pursuit of details.

　　Grinding and polishing

　　After completing the basic shape correction, the next step is grinding and polishing. Grinding is the process of grinding the surface more smoothly, while polishing is to increase the gloss and aesthetics of the surface. This stage requires great patience and skill, because excessive pressure or improper operation may lead to surface damage or deformation.

　　High precision detection

　　After the polishing work is completed, it is not a once-and-for-all thing. The next series of high-precision detection links are very important. Through professional instruments and equipment, the performance indexes of the movement are tested to ensure that every part meets the strict standard requirements of Rolex.

　　Assembly and adjustment

　　The last step is to assemble the polished parts and fine-tune them according to the requirements to ensure the best performance. This process also tests the skills and experience of craftsmen.

　　For Rolex watches, every watch is a unique work of art. And its incredibly precise internal movement is the soul of these works of art. Through the process of careful polishing and assembly, not only the watch is endowed with the ability to accurately walk, but also every wearer can feel the unique charm of time flow.

　　In short, in Rolex’s world, “polishing” is not just a simple word, it represents the spirit of unremitting pursuit of quality, meticulous attention to details and understanding and expression of time art. Behind every accurate walk, there are countless ingenious efforts and efforts.

　　Time is the fairest resource in the world. Whether you are rich or penniless, 24 hours a day is equal to everyone. However, for those who have the ultimate pursuit of time, when their beloved Vacheron Constantin watch suddenly stops, the sense of anxiety and confusion is like being forgotten by time. Don’t worry, today we will unveil the mystery of Vacheron Constantin’s watch “stopping” and provide some solutions.As we all know, 16202 The emergence of the market is worthy of many people’s attention, which has aroused the waves of the whole market. https://finewatchcare.com/products/fwc-for-audemars-piguet-16202or-watch-protection-film?_pos=1&_sid=1fa17a7de&_ss=r&variant=46836256801055

　　Why did Vacheron Constantin’s watch “stop secretly”?

　　1. Insufficient battery power: Just like a mobile phone needs to be recharged, Vacheron Constantin watches also need batteries to keep them running. When the battery is exhausted, the watch will naturally stop working. The solution is simple-charge it! However, it should be noted that not all Vacheron Constantin watches are rechargeable. For those watches that use traditional batteries, it is necessary to change the batteries regularly.

　　2. Mechanical structure failure: Although we hope our watch can run forever, mechanical watches also have their service life and wear problems. Gears, clockwork, escapement and other parts may be worn or damaged after long-term use. If this happens, it is recommended to send it to a professional service center for inspection and maintenance in time.

　　3. Environmental factors: extreme temperature changes, magnetic field interference (such as being close to mobile phones, computers or magnetic objects) and violent impact may affect the normal operation of the watch. Try to avoid these situations in daily life.

　　4. Improper operation by the user: For example, incorrect wearing method, improper cleaning method or incorrect adjustment of time may lead to the failure of the watch. It is very important to read carefully and follow the instructions in the watch manual.

　　solution

　　1. Regular maintenance: Just like a car needs regular maintenance, your Vacheron Constantin watch needs regular professional inspection and maintenance. This can not only ensure its accuracy and performance, but also prevent potential problems.

　　2. Understand and follow the user’s guide: each Vacheron Constantin watch has its own unique usage requirements and maintenance tips. Ensuring that you fully understand and follow these guidelines can help you better maintain your love watch.

　　3. Professional maintenance service: If you encounter problems that cannot be solved by yourself, please contact a professional maintenance service center in time. They have professional knowledge and tools to diagnose and fix any problems.

　　4. Reasonable wear and storage: Avoid exposing the watch to extreme temperatures and away from strong magnetic fields, and store it properly when not in use (it is best to keep it away from other metal objects).

　　In short, Vacheron Constantin’s “stealing” is not a hopeless disease. Through proper maintenance, reasonable use and professional help, your watch can still be a faithful partner in your life. Remember, “time” is not the problem, but “how to make time work for you” is the key!

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Beijing, July 17: An international study recently found that in January, when the Antarctic summer temperature is the highest, 57% of the melt water on the Antarctic ice shelf exists in the form of snow and mud. However, under normal circumstances, regional climate change models do not include This part of the melt water is calculated. This means that the amount of melt water on the Antarctic ice shelf is much higher than previously predicted.

Researchers from the University of Cambridge and other institutions in the United Kingdom published an article in the latest issue of Nature Geoscience that they trained machine learning models to analyze the monthly surface melt water records of 57 Antarctic continental ice shelves between 2013 and 2021. As well as mapping the snow and mud of the Antarctic ice shelf, it was found that in January, when the temperature in the Antarctic summer was the highest, 57% of the melt water on the Antarctic ice shelf existed in the form of snow mud, which is, snow soaked in water. The rest of the meltwater exists in surface ponds and lakes.

Researchers said that people usually use satellite images to map meltwater, but from the images, only meltwater lakes, etc. can be identified with the naked eye, and snow and mud are difficult to identify because it looks like the shadows of clouds. Machine learning models can use more satellite information such as light wavelengths to determine which areas are named snow and mud, making it possible to more accurately measure the amount of water melted on the ice shelf.

The study found that in the five major ice shelf areas, the amount of water melted on the Antarctic ice shelf caused by surface melt water was 28 times higher than predicted by standard climate models.

The surface melting of the Antarctic ice shelf mainly occurs in the summer of the southern hemisphere. Whether it is slush or melt water existing in surface ponds or lakes, it will affect the stability of the ice shelf and lead to sea level rise.

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Moscow, July 17 (Reporter Jiang Youlin) The Russian Ministry of Defense announced on the 17th that Russia and Ukraine each handed over 95 detainees to each other that day.

The Russian Defense Ministry said on social media that after negotiations, 95 detained Russian personnel returned from Uzbekistan-controlled areas. In exchange, Russia handed over 95 Ukrainian military personnel to Uzbekistan. The released Russian personnel will be sent to Moscow for treatment.

Ukraine President Zelensky also posted on social media on the 17th that 95 detained Ukrainian military personnel were released from Russia that day.

Since March 2022, Russia and Uzbekistan have exchanged detained persons many times. According to the latest data provided by Uzbekistan’s department responsible for coordinating detained persons, a total of 3405 people have been released so far. (Participating reporter: Li Dongxu)

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Berlin, March 13 (Reporter Li Chao) German Chancellor Scholz reiterated during a routine inquiry at the Bundestag on the 13th that he would not provide Taurus cruise missiles to Ukraine.

Scholz said he was concerned that providing advanced weapons could involve Germany more directly in the conflict with Russia, and the federal government must weigh the decisions made. Acting cautiously is not what some people think of as weakness.

Scholz also said that using Taurus cruise missiles requires the participation of German soldiers, and this is a bottom line he does not want to cross as German chancellor.

Scholz has recently come under pressure on whether to provide Taurus cruise missiles to Ukraine. Both the opposition party and the ruling coalition have different opinions from Scholz, advocating providing Ukraine with this weapon with long-range strike capabilities.

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[Trump Appears at the Republican National Convention: Bandaged Right Ear” target=_blank>

On the evening of July 15 local time and today (July 16) morning Beijing time, former President Trump, who originally planned to attend the Republican National Convention and deliver a speech on July 18 local time, appeared at the first day of the meeting.

This was the first time Trump appeared at a large-scale rally after experiencing an attempted assassination attempt at a campaign rally on July 13 local time. It can be seen from the picture that his right ear is wearing a bandage.

Earlier, Trump had obtained enough delegate votes at the Republican National Convention to be officially nominated as the Republican presidential candidate in the 2024 U.S. presidential election.

Trump also announced the choice of Ohio Senator James Vance as his running mate, the Republican vice presidential candidate.

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Geneva, March 14: Ambassador Chen Xu, Permanent Representative of China to the United Nations Office at Geneva and other international organizations in Switzerland, delivered a joint speech on behalf of 80 countries at the 55th session of the United Nations Human Rights Council on the 14th on artificial intelligence to promote children’s rights.

Joint speeches pointed out that artificial intelligence is the name of a new field of human development, and should adhere to the concept of extensive consultation, joint contribution and sharing, and work together to promote artificial intelligence governance. Children are the future and hope of mankind. The new generation of children has become one of the main groups using artificial intelligence technology and enjoying artificial intelligence.

Joint speakers emphasized that children’s mental health issues are crucial. The joint speech called for promoting the high-quality development of artificial intelligence, helping to promote children’s mental health, and protecting children’s rights.

They spoke together and put forward three propositions. The first is to adhere to child-oriented principles, uphold artificial intelligence for children, and give full play to the important role of artificial intelligence in guiding children’s mental health. The second is to adhere to fairness and universal benefits, strengthen exchanges and cooperation, provide technical support, share experiences and good practices to developing countries, and bridge the smart divide. The third is to adhere to harmony without difference, respect the sovereignty, laws, national conditions and historical, religious and cultural backgrounds of each country, and strengthen international artificial intelligence governance on this premise.

This is one of a series of speeches initiated by China at the Human Rights Council on artificial intelligence to promote the rights of specific groups, and has received widespread support and praise from Member States of the United Nations. China once launched a joint speech on artificial intelligence to promote the rights of people with disabilities at the 53rd session of the Human Rights Council.

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Washington, March 14 (Reporters Xu Yuan and Xiong Maoling) Data released by the U.S. Department of Labor on the 14th showed that the U.S. producer price index (PPI) rose 06% month-on-month in February, an increase of 03 percentage points from January, highlighting that the U.S. inflation situation remains severe.

Data showed that the U.S. PPI increased by 16% year-on-year in February, the largest increase since September 2023. Excluding food, energy and trade services prices, core PPI increased by 04% month-on-month and 28% year-on-year.

In the same month, commodity prices increased by 12% month-on-month, the largest increase since August 2023. Among them, natural gas prices rose 68%, and grocery prices rose 1%. At the same time, service prices increased by 03% month-on-month.

PPI tracks changes in production costs and is a key measure of inflation. Analysts believe that PPI accelerated again in February, indicating that inflationary pressures in the United States continue and the Federal Reserve may need to maintain high interest rates for a longer period of time.

A tracking data from the Chicago Mercantile Exchange showed that after the PPI data was released, the market basically believed that the Federal Reserve would maintain the target range of the federal funds rate between 525% and 55% at the monetary policy meeting held from March 19 to 20.

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According to a Reuters report on July 16, two Iraq military sources told Reuters that two armed drones attacked an air base in western Iraq where US military and other international troops were stationed on the 16th.

Reported that this is the second attack on U.S. troops stationed in Iraq since early February.

Sources said there were no reports of casualties. An Iraq officer said defense systems shot down a drone near the base.

In April, two drones were shot down near the base, according to a U.S. official.

According to reports, an Iraq army officer said the Iraq army has stepped up patrols around the base to prevent further attacks.

The report said a senior Iraq military delegation is expected to visit Washington in a week to continue negotiations on ending the U.S. -led coalition operations in Iraq.

Washington and Baghdad began negotiations in January to reassess the withdrawal of the U.S. -led coalition from Iraq. The coalition was formed in 2014 to help fight the Islamic State group that then occupied most of Iraq. (Compiled by Guo Jun)

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Tehran, March 13 (Reporter Shadati) Iranian Foreign Minister Abdullahiyan said on the 13th that Israel’s continued killing of Palestinians and its siege of the Gaza Strip are worrying. Israel’s actions have sounded the alarm for a humanitarian disaster unprecedented in this century.

The Iranian Ministry of Foreign Affairs said in a statement issued on the 13th that Abdullahiyan made the above remarks in a letter to the Secretary-General of the United Nations, the Secretary-General of the Organization of Islamic Cooperation, the President of the United Nations Security Council, and foreign ministers of Muslim and other countries.

Abdullahiyan said in the letter that Israel continues to carry out genocide in the Gaza Strip, Israel commits war crimes in the West Bank, prevents humanitarian aid and food delivery to the Gaza Strip and starve Palestinians, all of which have sounded the alarm for an unprecedented humanitarian disaster in this century. Iran strongly condemns Israel’s actions.

Abdullahiyan emphasized that the United States has used its veto power excessively in the United Nations Security Council, completely obviously and deliberately preventing the Security Council from taking any effective measures; it is necessary for the international community to find practical ways to take serious measures to support the Palestinian people and immediately stop Israel’s military strikes on the Gaza Strip and end the current terrible situation.