The Martin Orchestra Model 45 De Luxe (OM-45 De Luxe) is an extremely rare model. Only 14 were made in 1930. The OM-45 is a beautiful guitar made of the finest selected rosewood richly inlaid with pearl. Materials and ornamentation similar to regular OM Style 45 but with additional inlaid designs in the bridge ends and vine inlaid pick guard, and pearl dots in the bridge pins. Another feature of this model is the peg head which was fitted with the best gear pegs heavily gold plated and finely engraved, with real pearl buttons.

Martin reissued the OM-45 Deluxe in 1998, making an additional 14 instruments - so this is still a very rare and valuable model.