Roughly in the 1980s several brands delivered watches with dials that would crack after time. Often they altered the dial from a matt finishing to one with gloss finishing with an extra layer of shiny lacquer. Due factory defects (wrong mixtures in the lacquer) and weather conditions sunlight, temperature changes, etc. The dial lacquer cracked and the spider dial was born.Although most people only know Rolex examples of the spider dial, there are other brands that also were affected by the spider. Some famous Rolex references are: Rolex GMT 16750, Rolex Submariner 16800 and 5513. The 16800's were the first Subs to get the sapphire crystal making them water proof to 1,000 ft. For the first time for the Sub range, and it also introduced the rapid date change feature with the 3035 movt.
First 16800's had matte dials, without WG trim of the markers. Later, around 1985, the glossy dials with WG trimmed markers came.
Some of the glossy dials had a defect in the paint mixture, making for small cracks in the dial, popularly known as the "spider web" dials. The item "ROLEX 16800 SUBMARINER DIAL, HANDS, INSERT, CROWN, AND TUBE. RARE" is in sale since Wednesday, September 26, 2018. This item is in the category "Jewelry & Watches\Watches, Parts & Accessories\Parts, Tools & Guides\Parts\Other Watch Parts".The seller is "vintage-watch-repairs" and is located in Winston-Salem, North Carolina. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Israel, Mexico, New Zealand, Singapore, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Chile, Colombia, Costa rica, Dominican republic, Panama, Trinidad and tobago, Guatemala, El salvador, Honduras, Jamaica.