Martin OM-18 Authentic 1933 - Natural

6-string Acoustic Guitar with Solid Adirondack Spruce Top, Genuine Mahogany Back and Sides, and Solid Black Ebony Fingerboard - Vintage Gloss
5/5 1 Write review Item ID: OM18A33VTS
Martin OM-18 Authentic 1933 - Natural image 1
Martin OM-18 Authentic 1933 - Natural image 1
Sweetwater Savings: $1,370.00 MSRP: $6,599.00
Special Financing - Ends Jul 6

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Special-ordered from Martin. Please contact us for availablity and estimated delivery date. Special orders cannot be canceled or returned.
Note: While most of the items we sell ship for free, this item does not qualify for free shipping due to special circumstances.

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Martin OM-18 Authentic 1933 - Natural
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Vintage Appearance and Tonality

Based on a 1933 OM-18 on loan from Fred Oster of Vintage Instruments, the Martin OM-18 Authentic 1933 is an exquisite acoustic guitar. Built from genuine mahogany and topped with solid Adirondack spruce, the OM-18 Authentic 1933 gives you a warm, lively tone framed by a crisp, clear character with incredible response and massive headroom. On top of that, this remarkable acoustic guitar was treated with Martin's Vintage Tone System (VTS), so it convincingly evokes the aged appearance and tonality of the 1933 original. Topped off with period-correct appointments, including an Authentic 1933 neck barrel and heel, the Martin OM-18 Authentic 1933 acoustic guitar is bound to cause some commotion here at Sweetwater!

Martin OM-18 Authentic 1933 Acoustic Guitar at a Glance:
  • Carefully-selected tonewood combination for phenomenal tone
  • Vintage Tone System (VTS) for aged appearance and tonality
  • Authentic 1933 barrel and heel neck feels incredible
  • The Orchestra Model - Martin's first modern guitar
Carefully-selected tonewood combination for phenomenal tone

This Martin OM-18 Authentic 1933 acoustic guitar is built from highly-prized tonewoods. Full of warmth and liveliness, you'll love the bright, responsive sound of this OM-18's genuine mahogany back and sides. On top of that, this OM-18 is topped with solid Adirondack spruce, adding crisp and clear overtones to an already exquisite tone. Widely used on pre-war and vintage instruments, the clarity of Adirondack is unrivaled. Make no mistake, you'll be a believer after a single strum!

Vintage Tone System (VTS) for aged appearance and tonality

Martin's unique torrefaction process, called Vintage Tone System (VTS), allows their guitar builders to age the tops and bracing of their instruments to specific time periods, bringing out the character that an instrument from that year would likely possess. On top of that, Martin's Vintage Gloss Finish (which is applied by hand) also adds the warm glow appearance that you'd expect from a vintage acoustic guitar. In short, Martin's VTS provides you with the historic tones and visual aesthetics that were previously reserved for vintage instruments.

Authentic 1933 barrel and heel neck feels incredible

Martin's barrel and heel necks are remarkably thick, almost to the point that it's hard to wrap your hands around them. That being said, the longer you play them, the better they feel. In fact, you'll eventually reach that pivotal moment when this becomes your favorite neck! Many players find that when they become accustomed to barrel and heel necks, they quickly realize that these necks allow them to anchor the palm of their hand in more ways than a thinner neck. On top of that, the resonance and sustain that these necks allow is the stuff of legends!

The Orchestra Model - Martin's first modern guitar

In 1929, a banjo player named Perry Bechtel approached C. F. Martin & Company requesting that they build a new guitar model with a longer, narrower neck. Martin responded by building their first guitar to have 14 frets clear of its body, rather than 12 as in their previous models. These guitars had a 25.4" scale length, a solid, non-slotted headstock, and a glued-on pickguard. These new guitars, named the "Orchestra Model," marked a turning point for Martin, as they discontinued production of 12-fret guitars almost overnight. By 1934, Martin's OM models had morphed into the now-familiar 000 models.

Martin OM-28 Authentic 1931 Acoustic Guitar Features:
  • A hand-crafted replica of a highly-sought-after acoustic guitar
  • Carefully-selected tonewood combination for unrivaled tone
  • Authentic 1933 barrel and heel neck feels incredible
  • Vintage Tone System (VTS) for aged appearance and tonality
  • Waverly nickel tuners with butterbean knobs look great and keep you in tune
This Martin OM-28 Authentic 1933 belongs in your acoustic guitar collection!

Why Buy Your Guitar from Sweetwater?

See how Sweetwater goes to great lengths to give you the very best online guitar buying experience. From our online Guitar Gallery that allows you to see and select the exact instrument you want to our 55-point Evaluation process and our in-house guitar techs, we take the guesswork out of buying your next guitar online.

What Does "Special Order" Mean?

A special-order product is one that we don't normally keep in stock. We order it from the manufacturer as soon as you order from us. We have great relationships with all the manufacturers we carry, so we can get your special order to you as fast as or faster than anyone else. Remember that special orders are non-returnable and non-cancelable, so make sure the item is right for you. A Sweetwater Sales Engineer can help you decide — call (800) 222-4700 for assistance!

Additional Media

Acoustic Guitar Buying Guide

Tech Specs

String Type Steel
Number of Strings 6
Body Shape 000-14 Fret
Body Style No Cutaway
Left-/Right-handed Right-handed
Color 1933 Chris Hillman Shaded
Finish Vintage Gloss w/VTS finish
Top Wood VTS Solid Adirondack Spruce
Back & Sides Wood Genuine Mahogany
Body Bracing X Scalloped
Binding Black Boltaron
Neck Wood Genuine Mahogany
Neck Shape Authentic 1933 Barrel and Heel
Fingerboard Material Solid Black Ebony
Fingerboard Inlay Old Style 18
Number of Frets 20
Scale Length 25.4"
Tuning Machines Waverly Nickel 8060 with Butterbean Knobs
Bridge Material Solid Black Ebony
Nut/Saddle Material Bone
Nut Width 1.75"
Body Length 19.375"
Body Width 15"
Body Depth 4.125"
Overall Length 39.8125"
Strings Martin Bronze Medium Gauge (M150)
Case Included Hardshell
Manufacturer Part Number 10OM18AUTHENTIC1933VTS

Customer Reviews

Based on 1 review
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Not bad for an 82 year old guitar!

I was fortunate enough to purchase the Martin OM-18 Authentic 1933 guitar from Sweetwater and Adam Briggs, my sales consultant. I have purchased from Adam and Sweetwater before and I am always pleased with their exceptional service. I purchased this guitar as a demo model. But to be honest, it looks like it just came out of the factory showroom at Martin guitars. It is perfect. It is beautiful to look at and even more beautiful to play. I love the sound of this guitar and the build quality is just awesome. I have only owned it for a few hours (it arrived today). So I am sure after I play a little more with it I will upgrade my "awesome" comment. What a beautiful reproduction of an 82 year old guitar. I love it.
See also: 6 string acoustic guitars, Martin, Martin 6-string Acoustic Guitars