About Martin & Robert Goetzl

When Martin Guitar and Robert Goetzl come together to create instruments, the result is a collection of masterpieces that put the power of music, art, and nature in your hands. 

A resident of Lyndhurst, NJ, Robert Goetzl’s artwork can be seen throughout the Martin Guitar factory and museum. Paintings by Robert are featured on the tops of guitar models including the 00L Earth Guitar, DX175th Anniversary, DX Woodstock and the D-18 Robert Goetzl. His concept drawings have been the basis for guitar designs including serial number 2,000,000, the Watch Guitar. Prior to Robert’s involvement at Martin Guitar, he worked as a freelance artist and illustrated children’s books.

Closeup of a guitar headstock

OM Biosphere™

Specifications – Overview

Body size: 000-14 Fret

Construction: Simple Dovetail Neck Joint

Bracing Pattern: Forward Shifted X

Brace Shape: Scalloped

Top Material: FSC® Certified Sitka Spruce

Back Material: Sapele

Side Material: Sapele

Electronics: None

Finish Top: Satin

Back and Side Finish: Satin

Scale Length: 25.4”

Fingerboard Width at Nut: 1 3/4”

Neck Shape: Modified Low Oval

Neck Taper: High Performance Taper

D-Robert Goetzl 6: Rabbit

Specifications – Overview

Body size: D-14 Fret

Construction: Dovetail Neck Joint

Bracing Pattern: Forward Shifted X

Brace Shape: Scalloped

Top Material: Spruce

Back Material: East Indian Rosewood

Side Material: East Indian Rosewood

Electronics: None

Finish Top: Gloss

Back and Side Finish: Gloss

Scale Length: 25.4”

Fingerboard Width at Nut: 1 3/4”

Neck Shape: Modified Low Oval

Neck Taper: High Performance Taper

Goetzl 0 Tenor Uke1

Specifications – Overview

Body size: Tenor Ukulele

Construction: Applied Dovetail Neck Joint

Bracing Pattern: Tenor Ukulele

Brace Shape: Non-Scalloped

Top Material: Sinker Mahogany

Back Material: Sinker Mahogany

Side Material: Sinker Mahogany

Electronics: None

Finish Top: Satin

Back and Side Finish: Satin

Scale Length: 17''

Fingerboard Width at Nut: 1 13/32''

Neck Shape: Tenor Ukulele

Neck Taper: Standard Taper


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