The Oyster case was an innovation of its time when it was developed by Rolex in 1926. It ushered in a brand new era of durable, everyday watches that could be worn during almost any activity without damaging the internal movement. The Submariner takes the design of the Oyster case one step further and increased its waterproofness up to 300 meters/1,000 feet.The ref. 16613 features a standard 40mm case in highly corrosion-resistant 904L stainless steel. An 18 karat yellow gold screw-down crown and unidirectional bezel accompany the case, giving it a desirable two-tone design. The dial and bezel set are most commonly available in either black or blue, with some examples of the gem-set “Serti” dial (either champagne or silver in color and set with diamonds and blue sapphires) also available on the secondary market. Depending on the year produced, the ref. 16613 also features either a holes or no holes case and either Tritium or LumiNova used for the luminescence on the dial and hands.Regardless of the year of production, all two-tone Rolex 16613 Submariner watches are powered by Rolex’s trusty Caliber 3135 automatic movement. The 31-jewel movement beats at a rate of 28,800bph and includes a date complication, a 48-hour power reserve, automatic winding technology, and a sophisticated Breguet overcoil balance-spring. The movement has been a fixture in many Rolex wristwatches for more than three decades, and for a good reason. The Cal. 3135 has proven itself to be an accurate and robust movement, which can deliver decades of reliable performance if properly maintained.
The case is made of 316L stainless steel and then has 18K rose gold coating plated, the gold coating is thick, which is almost 5 mils. You must concern whether the rose gold coating will fade or not, I must say yes, even gold coating on genuine watches will fade, but on the replica, it will keep its gold tone after two years of wearing, that’s enough for us. The case has a very big diameter, which is 46mm, even though the case is brushed very well, but check its case edge, it does not feel as smooth as replicas made by ZF. The back is see-through crystal, which uses sapphire like the crystal on the front.The dial is in blue color, looks very charming. Amazong all IWC Le Petit Prince models, the one with blue dial is the most popular. Like the case, hour markers and hands all feature rose gold edge. Both subdials have refined circles, the small second hand is runniong on subdial at 9 o’clock. The subdial at 3 is an indicator that is displaying the remaining power reserve. It is marked with 7 DAYS, but the replica has 3-day power reserve. At 12 o’clock, there is a fan-shaped indicator that features three small windows, which displays month, date and week separately. The Annual Calendar function just works the same way as genuine watch. To get a better readability, the replica not only has big hour markers, it also has genuine Swiss lume material applied on markers and hands.
D-Blue and Black Submariner all belong to top replicas. There are two movement options, Hangzhou 6300 and Shanghai 3135. The size is 44mm and 40mm. In my opinion, if you want a comfortable winding experience, choose 3135 movement, if you have a limited budget, then choose the cheaper 6300.IWC371446, case diameter is 41mm. It uses the most stable Dandong chronograph movement. This Portuguese replica is made by GP, ZF or 3A factory. The version from GP factory is the best.PAM 111, the must-have Panerai watch, because it is in high quality and with a cheap price. The replica is equipped with a Sea-Gull ST3600 manual winding movement, which is very stable.
Titanium is the material of choice for the inner caseback on the Deepsea due to its strong corrosion-resistant properties and its ability to repeatedly flex under stress without developing the same degree of metal fatigue as steel. Since the crystal on the Deepsea will be subjected to the same extreme pressures as the caseback, its scratch-resistant sapphire crystal has been beefed up to be a massive 5.5mm thick, and it is crafted in a domed shape (without a Cyclops magnification lens) to better distribute the pressures being exerted on the face of the watch.Like both the Submariner and the normal Sea-Dweller, the Deepsea is equipped with Rolex’s Triplock winding crown that screws down and uses a system of gaskets to create three sealed zones to protect against moisture intrusion. Additionally, since the Deepsea is a variation of Rolex’s Sea-Dweller collection, its case is equipped with a helium gas escape valve, which allows the watch to safely be used for saturation diving applications.One of the hallmark characteristics of modern dive watches is the degree of the over-engineering present in their designs and the almost-ludicrously excessive performance-statistics that manufacturers are able to achieve. Although the Rolex Deepsea Sea-Dweller is easily the most capable and robust dive watch available in Rolex’s current catalog, only a very slim percentage of its owners will ever require even a small fraction of its incredible underwater functionality. Regardless, the Ringlock system and the case of the Deepsea are the perfect embodiment of form following function, as the watch was specifically designed from the ground-up to be the ultimate deep-sea diving timepiece.
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