The new Irony Chrono collections from Swatch are a masterful exhibition of high-performance time machines. The nine debut models capitalise on the big new case in stainless steel (43mm, up from 40) to exhibit clear, essential design and fine-tuned, split-second accuracy. Men appreciate the bigger format, pure performance and precisely calibrated chronograph. That said, what makes the Irony Chrono such a fine machine isn't the technology - it's the style.