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      An introduction to GMT watches

      An introduction to GMT watches

      The GMT (Greenwich Mean Time) watch has its origins in the need for a timepiece that could display multiple time zones simultaneously. It was initially developed for aviation purposes, particularly for pilots who frequently traveled across different time zones.

      The concept of GMT itself stems from the establishment of a standard reference time at the Royal Observatory in Greenwich, London, known as Greenwich Mean Time. GMT was adopted as the international time standard at the International Meridian Conference in 1884. It serves as a reference point for timekeeping worldwide.

      The first GMT watch was introduced by Rolex in the 1950s. It was specifically designed for Pan American World Airways pilots who were facing the challenges of long-haul flights and navigating through various time zones. Rolex collaborated with Pan Am to create a watch that would allow pilots to keep track of both their home time and the time at their destination.

      The key feature of a GMT watch is an additional hand, usually in a different color, on the dial that makes one full rotation every 24 hours. This hand is calibrated to display a second time zone in conjunction with a 24-hour bezel or an additional dial. The main hour hand indicates the local time, while the GMT hand can be independently set to track a different time zone.

      To use a GMT watch effectively, follow these steps:

      1. Set the local time: Adjust the main hour hand to match the current time in your current location. This can be done by pulling out the crown (the knob on the side of the watch) and turning it clockwise or anticlockwise.

      2. Set the GMT hand: Determine the time zone you want to track using the GMT hand. Pull the crown out to the first or second position (depending on the watch) and set the GMT hand to the corresponding hour for that time zone.

      3. Read the time: The main hour hand indicates the local time, while the GMT hand displays the time in the second time zone. The 24-hour bezel or an additional dial can be used to track the third time zone if available.

      Remember to account for any Daylight Saving Time adjustments or changes in time zones when setting and reading the GMT watch.

      Steeldive SD1993 diving watch is known for its durability and functionality. With a 24 hour watch ring, and a separate GMT pointer. A variety of bracelet ensure the watch fits comfortably on your wrist and meets your specific requirements.

      Watch sharing  Aesthetics of simple details

      Watch sharing Aesthetics of simple details

      Watch sharing  Aesthetics of simple details

      We always have high requirements for accessories, to have a sense of design, to have texture, to be high class.

      Watch, for example, carries the craftsmanship of craftsmen, the combination of mechanical art and aesthetics, but also the visible connotation and elegance.

      If you don't know what kind of watch you should get for the first time in your life, then this Steelflier Carved Coin Bezel VH31 Quartz Watch SF741 is the right choice, simple atmosphere, classic meaningful.

      This quartz watch is very simple aesthetic artistic sense, dial axis point and scale display formed a golden ratio, presenting the most perfect visual effect.  Clean and pure dial, charming dome arc table mirror, narrow frame design, the grand mirror perspective is more transparent and retro.  The whole table in thin and weight control makes it very light to wear, especially in winter can easily slide into the cuff, comfortable full marks.  The overall presentation of business leisure style, 200 meters of life waterproof can prevent the daily life and work of washing hands and face caused by splashing trouble.

      Simple aesthetic design is suitable for any style of wear and occasion, watch strap with leather belt, traditional needle buckle design, make it wear more attached to the wrist, a pursuit of simple, efficient attitude to life, a scientific and rational interpretation of the broad feelings of romantic art.

      When we look into the future, time may always seem very long, but as long as the heart to manage, you and I can have the beauty and growth given by the years.

      Military 24 Hour Clock System and Steeldive SF746

      Military 24 Hour Clock System and Steeldive SF746

      In the civilian world, the most common timekeeping system is the 12-hour dial, which shows the same time twice a day. Therefore, two similar notations should be distinguished by different notations: AM and PM. This makes it easy to confuse timeframes.

      In the military arena, confusion about the meaning of time can be deadly. Therefore, the military had to improvise a timing system that would reduce the possibility of ambiguity. This introduced the military time system, also known as the 24-hour clock system.

      Soldiers often used devices for long-range communication to enhance their cohesion, offensive, and defensive strategies. A slight error in information can lead to wrong actions. This was one of the drawbacks of the 12-hour clock. For instance, in the 12-hour system, it is very easy to confuse 12 midnight and 12 noon. It is also very difficult in to do swift calculations in time difference. For example, in the 12-hour system, it is harder to know that something lasts for six-hour when told it starts from 10:45 to 4:45. On the contrary, it is easier to comprehend that it starts from 10:45 to 16:45. For these challenges in the 12-hour system, the US Navy adopted the 24-hour system in 1920 which was later adopted by the US Army in 1942. However, the 24-hour clock was used informally by the Army and Navy in the latter half of World War I. Evidence of this can be found on the few dials of World War I American trench clocks.

      The 12-hour clock is still widely used in the United States today. The 24-hour system is also popular with airlines and other transit agencies where mistiming can cause confusion. Pilots, scientists and polar explorers employ his 24-hour clock. This is most likely due to the sun shining or being dark in that location for a long period of time. Night, which takes up most of the day, can be confusing for explorers. Professionals with highly sensitive operations, such as hospitals and intensive care units, also provide care around the clock. A small mistake in drug administration can lead to patient death.

      While the world adapts, adapts, and optimizes its systems to meet the needs of new technologies and methods, the history of the military era continues to be written.

      The Steeldive VH60 SF746 is a state-of-the-art instrument for professional pilots, designed for reliability and accuracy to meet current aviation specifications, with a 39 mm diameter dial for enhanced legibility. Subtle but significant design evolutions in the case, bezel, lugs and dial make the 39mm Steel Dive VH60 SF746 a modern pilot's watch rather than a remake of the original. Strictly in its original black and white paint scheme and without the patina that often twists the perception of historic watches.

      Watch Specification
      Model: SF746
      Movement type: Sweep second quartz movement
      Movement model: VH60
      Battery model: SR920SW(2 years)
      Case material: 316L stainless steel
      Case back: 316L stainless steel
      Watch mirror: flat sapphire crystal with AR coating.
      Water resistance: 200m / 20 ATM
      Luminous: Swiss C3 green and BGW9 blue super luminous.
      Crown: Screwdown Crown
      Case back: Screwback Case
      Clasp: 3 inner hold adjustable clasp
      Watch Dimension
      Case diameter:39mm ( without crown)
      Case length: 49mm (lug to lug)
      Case thickness: 12mm 
      Lug width: 20mm 

      SD1993 NH34 GMT Automatic Watch

      SD1993 NH34 GMT Automatic Watch

      The SD1993 NH34 is a remarkable mechanical watch from Steeldives that I highly recommend to any mechanical watch enthusiast.  This brand is known for its traditional craftsmanship that creates high-quality, high-performance, and high-value mechanical watches.  Let me tell you more about this watch in detail.

       First, let's talk about its appearance.  This watch features a circular dial with a diameter of 41mm, making it a perfect size for most wrists.  The main color of the dial is black, giving it a sleek and sophisticated look.  The hands and markers are beautifully crafted and highly refined, and the outer rim of the dial has a gear-like texture, which adds depth to the watch's overall design.  

      The watch's case and band are made of stainless steel metal, ergonomic design suitable for wear, wear and comfort.  Clear sapphire crystal glass, no matter any Angle, can clearly read the time.  Tight bottom screw bottom cover design, can firmly protect the internal movement structure, waterproof depth up to 300 meters, suitable for most underwater activities. 

      Let's now discuss its performance. With its self-designed NH34 movement, which includes a revolutionary shock-absorbing system and a highly effective winding mechanism, this watch offers accurate and reliable timekeeping. The watch also includes a special GMT feature that shows two time zones concurrently in a striking color scheme that is both functional and aesthetically pleasing. Additionally, the watch has a luminous feature that makes the hands and hour markers shine in the dark, making it simple to tell the time even in dim lighting. The watch is suitable for the majority of aquatic sports because it is water-resistant up to 300 meters.

      A reputable brand to purchase from is Steeldives, a well-known Chinese watch company that promotes social responsibility and environmental sustainability in addition to superb craftsmanship. The company is dedicated to the history and innovation of mechanical watches and frequently debuts new designs and features that broaden public awareness of and affection for these timepieces.

      In conclusion, the SD1993 NH34 is an outstanding mechanical watch from Steeldives that I highly recommend.  It has a beautiful appearance and impressive performance, making it a great choice for anyone in the market for a mechanical watch.

      Steeldive SD1910S- Elegant green dial with bronze bezel

      Steeldive SD1910S- Elegant green dial with bronze bezel

      Looking for a stylish and functional timepiece? It must be the Steeldive SD1910S. Let's take a look at the numerous advantages this watch offers.

      First, the Steeldive SD1910S diving watch is a very reliable watch.  It is made to survive both normal wear and tear and harsh circumstances, including deep-sea diving.  Anyone who appreciates water sports or activities will find the watch to be great because it is waterproof up to 1,000 meters.  The watch keeps its pristine state even after years of use thanks to its durable bronze casing and scratch-resistant sapphire crystal.

      The Steeldive SD1910S is a timer that is incredibly accurate and durable.  It is driven by the precise and dependable Japanese NH35 self-winding mechanical movement.  The movement has a power reserve of roughly 41 hours, so even if the watch is not worn for a few days, it will still function properly.

      Another aspect that consumers should consider is the vintage design of the Steeldive SD1910S.  The watch boasts an eye-catching green dial that gives it a bold appeal.  It is straightforward to read luminous time hands and markers even in low light.

      The Steeldive SD1910S is also a versatile watch that can be worn for a variety of occasions.  Its classic design and high-quality construction make it ideal for formal occasions, while its waterproof and durable features make it perfect for outdoor activities such as hiking, swimming or diving.

      For anyone who values quality, durability, and personality, the Steeldive SD1910S is a fantastic option.  It is a classic yet timeless investment watch thanks to its dependability, accuracy, and timeless design.  The Steeldive SD1910S is likely to wow, whether you're a collector or just searching for a fine watch to wear in any circumstance.