SKU: 34262265252

Martin Custom Shop OM Auditorium Acoustic Guitar, 18-Style, Flamed Koa Top/Back & Sides, Natural

Sale price$3060.90 Regular price$3401.00
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Description

Martin Custom Shop OM Auditorium Acoustic Guitar, 18-Style, Flamed Koa Top/Back & Sides, NaturalBeing one of a handful of Martin Custom Expert dealers, we have the privilege of building beautiful Martin Custom Shop pieces to spec, like this Martin Custom Shop OM with an Auditorium body made from flamed Koa with a natural finish. With a body that's sized the same as a 000 Martin at 15 inches, slightly smaller than the Dreadnought, the Orchestra Model (OM) features a slightly longer scale length of 25. 4 inches, plus a slightly wider neck that

Being one of a handful of Martin Custom Expert dealers, we have the privilege of building beautiful Martin Custom Shop pieces to spec, like this Martin Custom Shop OM with an Auditorium body made from flamed Koa with a natural finish. 

With a body that's sized the same as a 000 Martin at 15 inches, slightly smaller than the Dreadnought, the Orchestra Model (OM) features a slightly longer scale length of 25.4 inches, plus a slightly wider neck that gives it a reputation of being loved for fingerpicking styles, while also still boasting a moderate amount of projection and being notoriously comfortable to play. The "Orchestra Model" moniker is in relation to its projection, as the first versions that appeared in the 1930s were made to be able to offer enough projection to compete with a live orchestra, and still be heard with clarity. The OM Auditorium, introduced in the early 2000s, offers a slightly deeper body that helps with projection even further than the OM.

A trip to the Martin production factory led to us choosing to create this OM Auditorium featuring a top, back and sides all cut from gorgeous flamed Koa and finished in a natural finish that does very little to get in the way of the wood figuring. The top and back both offer a vertical grain that makes this guitar a visual joy, with the rear boasting two bookmatched halves that have no purfling between them. Under the top, Scalloped spruce 1/4" bracing helps this guitar project with clarity, structurally supporting the top while allowing it to vibrate freely at the same time. 

Nestled comfortably within the Koa body is a select hardwood neck, precisely shaped to Martin's Modified V profile, that sits deep in the palm and is a good fit for players who like their fingers to be able to reach all parts of the fingerboard with ease. A sleek black ebony fingerboard tops off the neck. This fingerboard features twenty frets, and dot inlays. The ebony's grain is tight, and its color is a dark contrast to the color of the Koa body. 

The Old Style 18 appointments found on this Martin include its rosette made of maple fiber, and a decal inlay on its headstock.

Most new Martin Guitars ship with the original endpin not installed, if you'd like us to install one for you before shipping, please let us know and we'd be happy to. 

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  • Timeless OM Playability, Modern Projection
  • Old Style 13 Inlays
  • Golden Era Scalloped 1/4" Spruce X-Bracing
  • 18-Style Appointments
  • Natural Finish
  • Flamed Koa Top, Back and Sides
  • Modified V Neck Profile
  • Black Ebony Fingerboard
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 34262265252

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4.4 ★★★★★
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Verified Purchase
Amazon Customer
Lowell, US
★★★★★ 5
Thanks Jeeves!
Size: 11, Color: Raven/Quiet Shade/Ivory
They look and fit very nice! Perfect for around the mansion or the yacht club lol.
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Reviewed in the United States on March 25, 2026
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Verified Purchase
Honest Opinion
Alexandria, US
★★★★★ 4
Poor footbed but otherwise good.
Size: 10, Color: British Tan/Dark Chocolate/Natural
Comfortable. Replaced mediocre footbed that has no arch support with something else and it is now great. True to size.
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Reviewed in the United States on April 16, 2026
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Verified Purchase
AFRugger
Pawtucket, US
★★★★★ 5
A notebook that stands up extremely well to bad weather and harsh working conditions
Color: Tan, Size: 1 Pack
Now that I've used this notebook, I can't see myself using any other kind. I travel a lot and need a notebook with me at all times. That means the notebook I have with me is going to get wet frequently and take a beating in my pocket. This notebook is perfect. Rain/sweat have no effect on my written notes or my ability to write. The pages are thick which prevents tearing. The cover and binding are quite sturdy, rather than getting bent like cheaper notebooks. At 4x6 inches this fits in my cargo pocket without a problem and gives me plenty of writing space. If you are going to carry the notebook in your front pocket I'd suggest the smaller 3x5 version. The ruler on the back page was not something I thought about but has come in handy several times. No, this is certainly not the cheapest notebook available, but it is a reasonable price for a high quality product. If you are using this for field work, it is probably worth the cost. My work notes are certainly more valuable to me than the couple extra bucks spent. And really, how often do you fill up a notebook? I only go through one every month or two so it's not very costly. You cannot use gel type pens with this notebook, only normal ballpoint pens or pencils. I suggest using a Fisher Space Pen, it works very well with this notebook (also available on Amazon Prime for under $10)
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Reviewed in the United States on May 31, 2016
M
Verified Purchase
MWC
Chelsea, US
★★★★★ 5
Wet proof is great
Color: Blue, Size: 6 Pack
As a nurse, I am able to put this in my scrub pocket and make notes as I go along. I also write down my patients' meds so I can refer to it when the computer is not available or not with me. Since it is wet proof I can sanitize it when (and not if) it gets something on it. I use a ballpoint pen and have used a pencil and none of my writing gets smeared or erased by the disinfectant wipes. Since I have these books stored securely in my locker if something comes up in the future with someone I can refer back to them for answers not found in the chart. I use my book when I am giving shift report which is very helpful when I have to tell the know-it-all nurse every little detail because she wants to eat breakfast instead of reading orders and notes. Some of my coworkers have also ordered their own books. A great product and very durable.
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Reviewed in the United States on June 30, 2020
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Ernesto Luna
Boise, US
★★★★★ 5
Great product
Color: Black, Size: 3 Pack
Great for taking notes. Write anywhere
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Reviewed in the United States on January 17, 2026

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