The GMT Master II ref. 16710 is one of the most iconic and influential examples of the brand’s multi-time zone pilot’s watch. It brought an upgraded case and movement to the line, making it a huge success and leading to its impressive production run of almost twenty years. The ref. 16710 was then replaced by the ref. 116710 in the late 2000s as a completely new generation of Rolex GMT-Master tool watches began to make an appearance with a brand new case and bracelet design, improved materials, and a new movement.Rolex developed the GMT-Master in the early 1950s at the request of Pan Am Airlines. Its release came during the dawn of international flight. The famous air carrier required a dual-time wristwatch to issue their pilots, and the GMT-Master was born. The GMT-Master II was released a number of years later in 1983 with the ref. 16760, and brought with it independent hour hands that allow the wearer to read two time zones on the dial and a third on the bezel.The first GMT-Master II ref. 16760 featured a bulkier case and is often referred to by avid collectors as the “Fat Lady” or “Sophia Loren.” In 1989, Rolex would release a refined variation of the Fat Lady GMT in the form of the sleeker reference Rolex 16710 with a thinner case and movement. The ref. 16710 was well-received among collectors for its upgraded case and movement, and it would go on to become one of the most successful GMT-Master II models, remaining in production for nearly twenty years.A completely redesigned version of the stainless steel Rolex GMT-Master II was introduced in 2007, which meant the discontinuation of the long-running ref. 16710. The Rolex 116710 is similar in design as its 5-digit predecessor with an all-steel finish, a perpetual movement with independent hour hands, and a bidirectional bezel; however, that’s where its similarities end. The ref. 116710 is almost an entirely new watch and boasts a redesigned bezel, case, bracelet, and dial, as well as the newer Caliber 3186 perpetual movement.
There are totally four watches of IW503502, three of them are in white stainless steel, the other one has a rose gold case. I will take the stainless steel model with black leather strap for example. The case is made of solid 316L stainless steel, which is measured to be 44mm in diameter, case thickness is 14mm. Round case and thin bezel make the dial look bigger, this is the classic case design of most dress watches. As one of the most popular dress watches, IWC Portuguese has a simple case and elegant dial design. The front face of the lugs are polished, both sided faces of the case are brushed, the arc of the lugs is improved, it is closer to genuine. Case back is see-through sapphire crystal.
As the old saying, someone who can keep the time, is the real hero. Nowadays, wrist watch is not just a timing tool, also not just a decoration only, it is more like a medium to reveal their own style and a symbol of the past time. Especially for someone who are so important for you, if they give you a wrist watch as gift, it may has special meaning, it not only memories the time, but also in memory of your love. Today I am going to introduce a kind of meaningful watch, it is a replica IWC Portuguese Chronograph, which is in a low-key but luxurious style, I am sure that you will be attracted by it deeply.
The ref. 16710 is outfitted with a standard 40mm Oyster case with water-resistance up to 100 meters and a protective sapphire crystal over the dial. The bezel is equipped with an aluminum insert in either all-black, red and blue, or red and black. Depending on the year of production, the watch is also available on the secondary market with cases that have either lug holes or no lug holes, and the luminous material on the dial will vary, as Rolex made the switch from Tritium to LumiNova during the production of the reference 16710 GMT-Master II.With the release of the ref. 116710 came a brand new case design that includes the upgrade to a triple-sealed Triplock screw-down crown, a new bezel mounting system that operates on 24 clicks instead of 120, a tougher “Cerachrom” bezel insert crafted from a scratchproof ceramic material, and a “Maxi” dial topped with larger hour markers and wider hands. The 40mm case also received a larger crown guard and wider lugs, earning it the nickname the “Super Case” among collections due to its thicker and more aggressive overall appearance.The ref. 16710 is equipped with the self-winding Rolex Caliber 3185 perpetual movement, which includes a Quickset function for easy adjustment of the date mechanism, hacking, an independent 24-hour hand, and a 48-hour power reserve. However, near the very end of production of the ref. 16710, Rolex switched movements, and later-era examples of the reference 16710 were equipped with the Caliber 3186 movement. The Caliber 3186 has the same specifications as the Caliber 3185 but is now equipped with Rolex’s newer paramagnetic blue Parachrom hairspring and a smoother operating jump-hour hand. With that in mind, all reference 116710 GMT-Master II watches run solely on the Caliber 3186.
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