DEFY Skyline Skeleton in a 41mm steel octagonal case with a faceted bezel, featuring a black open dial revisiting the emblematic ZENITH four-pointed star. Powered by the El Primero 3620 SK high-frequency automatic manufacture skeleton movement with the very first 1/10th of a second indicator. Interchangeable steel bracelet and black patterned rubber strap. A second strap is offered to fully experience the interchangeability of the watch.