Cosc certified, this frederique constant classic highlife automatic men's timepiece offers a refined blend of elegance and functionality. The watch is chronometer certified for its ability to tell the time correctly, consistently and precisely, within the strict limits enforced by an iso standard. Green sandblast dial; date display 39. 0mm brushed and polished stainless steel case with exhibition case back; sapphire crystal swiss automatic movement; 38-hour power reserve silver-tone stainless steel bracelet; push-button fold-over clasp cosc (official swiss chronometer testing institute) certified includes interchangeable green croc-pattern leather strap; buckle clasp water-resistant to 100 meters we are an authorized frederique constant dealer