The Longines Heritage 1951-1954 models are updated versions of the mechanical chronographs produced during the 1950s, which in turn were developed from the first wrist chronographs that Longines created in 1913. Inspired by the brand's rich heritage, these revamped models combine timeless beauty with a long experience in sports timing.Ref. L2.747.4.92.4 has a stainless steel case and a 'panda' dial.