If you like stealthy watches that fly under the radar, the Zenith Defy El Primero 21 Carbon is the perfect choice. First released in 2017, the 1/100th of a second chronograph mechanism, continues to prove why Zenith is one of the leaders and pioneers in making reliable and very accurate chronographs. The Zenith Defy El Primero 21 Carbon is one of those watches that ticks al the boxes if you are looking for a underrated, all black, sporty in-house chronograph under $20K USD. After the revival of the Defy line with a case design more in line with the historical Defy watches from the sixties and seventies, the Defy collection brings a breath of fresh air to a brand that has revolved around the El Primero look for most of his modern history since 1969.