Martin Custom Shop OM ‘Premium Sitka / Mahogany Ambertone’ Acoustic Guitar

Hand selected by Acoustic Centre at the Martin Guitars Custom Shop in Nazareth, Pennsylvania, his exquisite Martin Custom Shop OM blends vintage elegance with the tonal balance that has defined Martin craftsmanship for over a century. Built with a premium Sitka spruce top and genuine mahogany back and sides, it delivers a clear, warm, and articulate tone with exceptional projection and balance across all registers. The Ambertone 1933 finish adds a touch of old-world character, perfectly complementing its understated vintage-inspired appointments.

Featuring scalloped ¼” Sitka bracing for responsiveness and a comfortable Modified Low Oval neck, this OM feels lively and resonant in the hands. Its slotted headstock, ebony fingerboard, and rosewood binding reflect Martin’s rich heritage, while modern adhesives ensure stability and consistency. This Custom Shop creation offers timeless tone, refined aesthetics, and the unmistakable feel of a hand-crafted instrument built to inspire.

• Premium Sitka spruce top with 1933 Ambertone finish for rich, vintage tone

• Solid mahogany back and sides for warmth and clarity

• Scalloped ¼” Sitka bracing enhances resonance and response

• Modified Low Oval neck with slotted headstock for classic OM feel

• Ebony fingerboard and bridge with abalone Old Style 18 inlays

Specs

• Serial Number 2900429

• Top Material Premium Sitka Spruce

• Back & Sides Material Mahogany

• Bracing Sitka Spruce, Scalloped, ¼”

• Body Style OM

• Finish Gloss Body with Satin Neck

• Top Color Ambertone 1933

• Binding East Indian Rosewood

• Rosette Old Style 18 Black Maple Fiber

• Neck Profile Modified Low Oval

• Scale Length 25.4"

• Fingerboard Material Black Ebony

• Fingerboard Inlay Old Style 18 with Select Abalone

• Bridge Material Black Ebony – Modern Belly Style

• Bridge Pins Black with White Dots

• Nut Material Bone

• Adhesive Modern Adhesive

• Headstock Slotted with Round Slots

• Electronics None

• Spacing 1 ¾" x 2 ⅛" x 2 5⁄32"