Martin D Biosphere® III Dreadnought Robert Goetzl Polar Bears

Martin D Biosphere® III Dreadnought Robert Goetzl Polar Bears

Serial Number M2961339

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- Our luthiers at Fuller's Guitar thoroughly inspect and set up each instrument to factory specification action and neck relief prior to shipping to make sure that your new instrument is gig-ready right out of the box.

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The D Biosphere® III pairs FSC®-certified tonewoods with Robert Goetzl’s artwork of a polar bear and cub, honoring Polar Bears International® and reminding us that nature’s song deserves a stage. 

Celebrate Earth Day with the D Biosphere® III, the latest chapter in Martin's commitment to sustainability and environmental awareness. Crafted entirely from FSC®-certified woods, this guitar is more than an instrument—it's a call to action. At its heart is a captivating work of art by Robert Goetzl, depicting a tender moment between a polar bear mother and her cub, set against a backdrop of icy blues and a warm, glowing sky. It’s a scene of beauty and fragility, echoing the uncertain future these majestic animals face. This model is a tribute to Polar Bears International®, a nonprofit dedicated to the conservation of polar bears and the Arctic sea ice they depend on. C. F. Martin & Co.® has made a generous donation to support its vital work, helping to address both short- and long-term threats to these incredible animals and ensure they continue to roam the sea ice for generations to come. Featuring a Dreadnought body made of solid sapele back and sides and a solid Sitka spruce top, the D Biosphere III produces a rich, resonant tone that mirrors the voice of our planet—bold, clear, and deeply moving. Thoughtful touches like European flamed maple binding and sapele fingerboard inlay make it as beautiful to play as it is to behold. Every strum of this guitar reminds us of the deep connection of all life and the importance of preserving it for generations to come. Join Martin in raising awareness and protecting our planet, because nature’s song deserves a stage. 

Specifications

Highlights
D-14 Fret body size
Sapele back and sides
Sitka Spruce top with Custom Ink top color
Modified Low Oval neck with High-Performance Taper
1 3/4'' fingerboard width at nut
Softshell case
Strings: Luxe by Martin® Kovar™ SP Core Strings - Medium

Top
Top Material: Sitka Spruce
Finish Top: Satin
Top Color: Custom Ink
Top Inlay Material: Black Fiber Stripe
Top Detail: FSC® Certified Wood
Binding: FSC® Certified European Flamed Maple
Bridge Material: FSC® Certified Ebony
Bridge Style: Modern Straightline - Drop in Saddle
Bridge String Spacing: 2 5/32"
Bridge Pin Material: Bone
Bridge Pin Dots: None
Pickguard: None
Pickguard Inlay: None
Rosette: None
Saddle: Compensated Bone
Saddle Radius: 16"

Body
Body Size: D-14 Fret
Construction: Simple Dovetail Neck Joint
Back Material: Sapele
Side Material: Sapele
Back and Side Finish: Satin
Back and Sides Color: Natural
Back Detail: FSC® Certified Wood
Side Detail: FSC® Certified Wood
Back Purfling/Strip: None
Back Inlay Material: None
Side Inlay Material: None
Bracing Pattern: Forward Shifted X-Brace
Brace Shape: GE-Scalloped
Brace Material: FSC® Certified European Spruce
Brace Size: 5/16"
Heelcap: None
Endpiece: None
Endpiece Inlay: None

Neck
Neck Shape: Modified Low Oval
Neck Taper: High-Performance Taper
Neck Material: FSC® Certified Select Mahogany
Neck Color: Natural
Finish Neck: Satin
Scale Length: 25.4"
Number of Frets Total: 20
Neck Joins Body At: 14th Fret
Fingerboard Material: FSC® Certified Ebony
Fingerboard Width at 12th Fret: 2 1/8''
Fingerboard Width at Nut: 1 3/4''
Fingerboard Inlay Style: Dots
Fingerboard Inlay Material: FSC® Certified Sapele
Fingerboard Binding Material: None
Side Dots: Aluminum

Headstock
Headstock Shape: Solid with Square Taper
Headplate Material: FSC® Certified Ebony
Headplate Logo Style: Script Authentic 1933 Overlay
Headplate Binding Material: None
Tuning Machines: Nickel Open Gear
Knob: Butterbean
Nut Material: Bone

Misc
Case: Softshell
Label: Multiple Paper Labels
Electronics: None
Pleked: true