Squale Watch T183 Blue Forged Carbon T-183FCBL. Forged carbon is a type of carbon fiber that is incrediblystrong, yet light. The term “forged” is derived from themanufacturing process: small fragments of carbon fiber areplaced in molds together with resin, then compressed and“forged” at high temperature. The mottled effect is a uniquecharacteristic resulting from this process.