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).
When we turn back the replica, we will admire its amazing back-case. Generous, this is the only word I want to express. We can review the beauty of machine accompany with the moving of balance wheel clearly in such big back-case. It is liked that we are admiring a wonderful artwork.Next, let’s see its band and clasp. A good band need to be comfortable and durable in quality. So the replica has do it so well in this detail, a folding clasp with classic 316 stainless steel and has IWC LOGO in it. It reveals the taste of gentlemen and active sport style fully.In the end, Let’s see an important element, this IWC Portuguese replica is equipped with a powerful movement, it is high clone CAL.51011, can keep over 120 hours power reserve. If normal watch, uses ETA movement, mainly can keep about two or three days. So this replica is really an excellent one with high copy technology.In my point of view, this replica is deserve to have one, it is not so luxurious and complicated, but is elegant and dedicated. You need to have such replica as your special artwork in hand.
