The name "OSMIOR" refers to an ancient metal alloy, primarily made of gold with a colour comparable to platinum. This material was used regularly by the House in manufacturing cases for its Grande Complication watches, and was thus the natural choice to designate the classical range of the Leroy collections. The OSMIOR range perfectly captures the values of elegance, finesse, discretion and quality reflected in the timepieces L.Leroy produce in their workshops.