While bidirectional rotating bezels may be quicker for wearers to turn to the appropriate spot, as a dive bezel it’s not the best option. If the bezel gets accidentally knocked, this could cause divers to miscalculate how long they have been underwater. Therefore, a unidirectional bezel is more prudent because accidental knocks to the bezel can only result in overestimating immersion time – it’s far preferable to start ascending to the surface earlier or spend longer than necessary at a decompression stop.Rolex began equipping the Submariner with unidirectional bezels starting with the Submariner Date ref. 16800, which was introduced around 1979. The no-date Submariner model received a unidirectional bezel with the introduction of the Submariner ref. 14060 in 1990.Like the previous generation, the new unidirectional bezels included aluminum bezel inserts. In 1983, Rolex introduced the first two-tone Submariner model in the form of the Submariner Date ref. 16803, which sported a yellow gold knurled bezel with a black or blue aluminum insert. To celebrate the 40th anniversary of the Submariner in 2003, Rolex introduced the stainless steel Submariner Date ref. 16610LV with a green bezel insert.In 2008, Rolex introduced the first Submariner models equipped with unidirectional bezels featuring Cerachrom inserts. Cerachrom is Rolex’s proprietary ceramic alloy that is not only resistant to scratching but also to fading. The 60-minute graduations are cut into the bezel and then the ceramic bezel insert is fully coated with either yellow gold (for yellow gold and two-tone models) or platinum (for white gold or steel models). The gold/platinum is then polished away from the ceramic surface until only the recessed numerals and markings are left with the metal filling.By 2012, Rolex had rolled out the Cerachrom bezels across all Submariner models and color options include black, blue, and green. A quick way to know the color of the bezel is to look at the letters in the reference number: LB (blue bezel), LN (black bezel), and LV (green bezel).
Two replica IWC watches are from Z factory, we call it ZF. Both watches have real power reserve and equipped with a clone IWC 52110 movement. The Titanium Big Pilot has a reference number IW510301, while the Bronzo Big Pilot has a reference number IW501005.The following are specification of two watches.First, Big Pilot Titanium. Movement: Clone IWC 52110, Based on an Asia 23 Jeweled Automatic Movement Case: 46mm*15.5mm, Solid Titanium Case with Satin Finish Crystal: Sapphire with AR Coating Dial: Black with Superlumed Hour Markers and Hands, Working Power Reserve Indicator at 3 o’clock Bracelet: Brown Riveted Leather Strap with Deployant Clasp Water Resistant: 30m Second, the Big Pilot Bronzo.Movement: Clone IWC 52110, Based on an Asia 23 Jeweled Automatic Movement Case: 46mm*15.5mm, Solid Bronze Case Crystal: Sapphire with AR Coating Dial: Brown Dial with Superlumed Hour Markers and Hands, Working Power Reserve Indicator at 3 o’clock Bracelet: Brown Riveted Leather Strap with Deployant Clasp Water Resistant: 30m Both Big Pilot watches have a super quality, because they are from Z factory. Every detail is replicated so well, especially the delicated satin finish on the case, and the micro-sanded dial detail, they all represent the top-level manufacturing process in our watch market. However, although the power reserve indicator is working, it can not reach 7 days, you need to wind them every day to gain enough power.
There are also other dial details that tell this Sea-Dweller from others, that is its hour markers are unique, they are oval-shaped, expect a triangle at 12 and other two bar shapes at 6 and 9. All hour markers are a little yellow not white. Minute scales are thin sticks in white. There is a date window positioned at 3, black date font in white background. “SWISS – T < 25” at 6 instead of “SWISS MADE”.Black bezel is bi-directional rotating like genuine. The case back has special engravings curved, including Rolex Lgo, and words of “ROLEX”, “ROLEX PATENT . GAS ESCAPE VALVE . OYSTER”. The case back is also screwed down like modern Sea-Dweller, you can see there are some digital numbers engraved on the back side of the bracelet, I do not know what meaning. The replica 1665 is equipped with an Asian clone ETA 2846 movement, it has 17 jewels and beats at 21600 times per hour, I have done a movement test, like the picture said, only 7 seconds inaccuracy each day.Specifications: Movement: Asian Clone ETA 2846, 17 Jewels, 21600bph Case: 40mm*13mm, 316L Stainless Steel, Bi-directional Black Bezel Crystal: Plexi Plastic Dial: Black with Dot Hour Markers Bracelet: Solid Steel Oyster Bracelet with Diver’s Extension Water Resistant: 30 Meters In recent times, I have written a lot about Rolex watches and most of them are vintage Sub and Explorer, they got a great response on my blog, many readers asked how to buy it and encouraged me to written more things about those vintage watches. Yes, I will keep doing my work to introduce more fantastic replica watches, besides, all advice I have given to you is honest, there are a lot types of replica watches in the market, each type varies in quality, I just hope you to get the most high-end ones.
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