MARTIN introduced the OM-1 in 1999. It was a moderately priced 000 sized acoustic with solid sitka spruce top and stratabond laminate neck. This model was replaced by the OM-1GT.

MARTIN produced the OM-18 between 1929 and 1933

The Martin OM-18GE (1930) was introduced in 2003 as part of the Golden Era Series. The OM-18GE (1930) replicates thw pre-war OM-18 model built during Martin’s first 1930s “Golden Era” of legendary quality and originality. Features include genuine mahogany backs and sides and CITES certified Brazilian rosewood headplates finished in the original lacquer, Adirondack spruce tops, 1930s style forward-shifted X-bracing, ivoroid bindings, cloth side strips, 1930s style logo and V—neck profiles. All OM-18GEs had their interior label signed by CF Martin IV.

Introduced in 1992 the Martin OM 21 had a slighty wider neck that was perfect for fingerstyle picking. Martin updated the OM 21 model in 2012 - giving it the Performing Artist neck profile, with shallow oval shape and a slightly narrower taper.

MARTIN produced the OM-28 between 1929 and 1933

MARTIN made the first OM-42 in 1999. It had a solid spruce top with a choice of solid Indian rosewood or koa back/sides (option from 2005 on costing $400 extra). Bound top, back, fingerboard, and peghead, features wide neck and long scale format.

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 began making the OMC-16RE Aura in 2003

The OMC-16RE Premium was introduced in 2003

MARTIN produced the OMC-16WE between 2002 and 2003