Like all Rolexes, the movement is in-house and for this version, contains the Rolex Parachrom replica watches uk hairspring which is supposed to be better at resisting the negative effects of magnetic fields and thus keeping an accurate beat over the years. The sapphire crystal has some of the best anti-reflective coating (AR) I have ever seen on replica watches uk. This makes the bezel visible at even the thinnest of angles.. The crystal contains a magnifying bump above the date. This makes the date visible at a glance. Some might see this as an unnecessary blemish on an otherwise perfect and symmetrical design but I believe that it is very functional and replica watches uk in time, I learned to appreciate and replica watches uk actually like this feature quite a bit. The Rolex GMT-Master II replica watches reference 116713 LN retails for $11,750 for the two-tone gold and steel version reviewed here. There is also an all-steel version, reference 116710 LN ($7,900) and an all-gold reference 116718 LN ($29,500).