Firstly let’s have a look at two watches of Ref.16610 and Ref.16660, both of which look like old version of Submariner. However, if looking carefully, you will find that there’s not Cyclops lens over the date of the old Sea-Dweller. Meanwhile, the size of the dial is different. To be Surprised, it is the Rolex Sea-Dweller copy watch with Oystersteel case looks smaller.
In fact, the diameter of this old Sea-Dweller is 39mm while the old Submariner is 40 mm. The difference between the two watches is only 1mm, however, the visual effect is quite different. Referring to the dial, there are five versions of the 39 mm fake Rolex watch Ref.16660 from 1981 to 1988. From the picture you will see that the dial is quite distinctive as the the protective lacquer of the dial was with the major quality problem. The special dial was called as “Spider Web Dial” by watch lovers of Rolex.
This cracked special surface is only due to problems with the manufacturer’s formula for the production of varnish. However, the unique knockoff watch with the special dial has been favored by many watch lovers and collectors. Although Rolex could freely exchanged the dial for you, no one will get there for exchange due to the value.