Martin OM-28 Authentic 1931 Aged Acoustic Guitar

C.F. Martin Guitars

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Historically Accurate Replica of the Rare 1931 OM-28 Played by Folk Legend Mike Seeger

Martin Authentic Series guitars are modeled after immaculate examples of vintage Martin guitars kept in the Martin Museum. Meticulously reproduced vintage Martin Authentic Series instruments all feature historically accurate appointments and craftsmanship that remain true to the origins of these much sought-after instruments. 

The Martin OM-28 Authentic 1931 was based on the rare Martin OM-28 owned by folk legend Mike Seeger. Featuring a genuine Adirondack Spruce top enhanced with Martin’s Vintage Tone System (VTS) for authentic aged appearance and vintage tone, and Madagascar Rosewood back and sides, this Martin Authentic Series OM-28 1931 Aged Acoustic delivers the tonality and appearance of the legendary original.

The OM Orchestra Model size was one of Martin’s most significant innovations in the history of acoustic guitars. The OM-28 is one of Martin’s most celebrated 14-fret models, and its comfortable size and 25.4“ scale length along with the prized tonewood combination of a Spruce top with Rosewood back and sides, and its dovetail neck joint with hide glue construction, gives this authentic OM-28 a crisp and rich tone with mellow overtones.

The OM-28 Authentic Aged 1931 also features an authentic 1931 neck shape which is contoured to fit your hand, and an Ebony fingerboard with Golden Era diamond and square pattern inlays, delivering the vintage look and authentic feel of the vintage OM-28, with the perfect body size and neck feel for fingerstyle and more technical styles of music.

The Martin Authentic Series OM-28 also features an array of historically accurate appointments that make it true to the legendary OM-28 that it is based on including 1931 authentic X-bracing, bold Herringbone inlay, zigzag authentic back purfling, 1931 Golden Era Style diamonds and squares pattern fingerboard inlays, real bone nut and saddle and open gear nickel tuners, making this Martin Authentic Series OM-28 a collector’s dream!


  • Body Size: 000-14 Fret
  • Finish Top: Vintage Gloss
  • Construction: Dovetail Neck Joint - Hide Glue Construction
  • Back & Side Finish: Vintage Gloss
  • Bracing Pattern: Authentic 1931 X-Brace
  • Scale Length: 25.4"
  • Brace Shape: Scalloped
  • Fingerboard Width At Nut: 1 3/4''
  • Top Material: Adirondack Spruce with VTS
  • Neck Shape: Authentic 1931
  • Back Material: Madagascar Rosewood
  • Neck Taper: Standard Taper
  • Side Material: Madagascar Rosewood
  • Electronics: Not Available
  • Recommended Strings: Authentic Acoustic Lifespan® 2.0 Light - 92/8 Phosphor Bronze MA540T 
  • Top Color: Clear
  • Bridge Style: Authentic Belly - Glue in Long Saddle
  • Binding: Grained Ivoroid
  • Bridge String Spacing: 2 5/16''
  • Top Inlay Material: Fine Herringbone
  • Bridge Material: Ebony
  • Bridge Pin Material: Faux Ivory
  • Pickguard: Tortoise Pattern
  • Bridge Pin Dots: Black Plastic
  • Saddle: Bone
  • Rosette: Multi-Stripe
  • Saddle Radius: 16"
  • Brace Material: Adirondack Spruce with VTS
  • Brace Size: 5/16" with 1/4" Tone Bars
  • Back Purfling/Strip: Zig-Zag Authentic
  • Back Inlay Material: Multi-Stripe
  • Heel Cap: Grained Ivoroid
  • Endpiece: Grained Ivoroid
  • Side Inlay Material: None
  • Endpiece Inlay: Multi-Stripe
  • Neck Material: Genuine Mahogany
  • Fingerboard Material: Ebony
  • Finish Neck: Vintage Gloss
  • Fingerboard Width at 12th Fret: 2 1/4''
  • Neck Color: Dark Mahogany
  • Fingerboard Inlay Style: 1931 Golden Era Style Diamonds and Squares Short Pattern
  • Number of Frets Total: 20, Neck Joins Body At 14th Fret
  • Fingerboard Inlay Material: Abalone
  • Fingerboard Binding Material: None
  • Side Dots: Grained Ivoroid
  • Headstock Shape: Solid with 1931 Taper and Diamond
  • Tuning Machines: Nickel Open Gear
  • Headplate Material: Madagascar Rosewood
  • Knob: Butterbean
  • Headplate Logo Style: Stamped on Back of Headstock
  • Nut Material: Bone
  • Case: Ply Hardshell
  • Left Handed Availability: Yes
  • Label: None
  • Pleked: No

The Rare Collectible Vintage Guitar That Plays and Sounds as Incredible as it Looks!

The Martin OM-28 Authentic Series 1931 Aged acoustic represents a palpable shift in the high-end collectible guitar market in which sound and playability are just as important as aesthetics. Thanks to the Martin VTS (vintage tone system) you get the look and sound of an authentic vintage guitar from the 1930‘s with all of the decorative appointments that you could ever want including fine tonewoods, vintage aged appearance and decorative purfling and inlays. Whether you are a player looking for that vintage Martin tone or a connoisseur seeking a collectible museum piece, the Martin OM-28 Authentic Aged 1931 acoustic guitar will deliver the aesthetics, tonal qualities and playability that you are looking for.

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