The Martin OMJM John Mayer is a signature Orchestra Model that reflects over two decades of collaboration between Martin and one of today’s most influential guitarists. Based on Mayer’s original OM-28JM, this model brings together refined tonewoods and thoughtful design choices in a more widely available format while maintaining the core character of the original.

With an Engelmann spruce top paired with East Indian rosewood back and sides, the OMJM delivers a balanced and expressive voice with clarity, warmth, and dynamic range. The 25.4" scale length adds projection and headroom, while the Low Profile neck offers a smooth, comfortable feel across styles. Appointments like bold herringbone trim, an abalone rosette, and custom inlays—including John Mayer’s signature—round out a design that feels both classic and personal.

Highlights

• John Mayer signature OM based on the original OM-28JM
• Engelmann spruce top with East Indian rosewood back and sides
• Low Profile neck with Standard Taper for smooth playability
• 25.4" scale length for added projection and clarity
• Includes embroidered hardshell case

Specifications Body

• Body Size: 000-14 Fret
• Top Material: Engelmann Spruce
• Top Color: Antique Toner
• Finish Top: Gloss
• Back Material: East Indian Rosewood
• Side Material: East Indian Rosewood
• Back and Side Finish: Gloss
• Construction: Simple Dovetail Neck Joint
• Bracing Pattern: X-Brace
• Brace Shape: Scalloped
• Brace Material: Spruce
• Brace Size: 5/16" with 1/4" Tone Bars
• Binding: Antique White
• Top Inlay Material: Bold Herringbone
• Rosette: Abalone with Multi-Stripe
• Bridge Material: Ebony
• Bridge Style: Modern Belly - Drop in Saddle
• Bridge String Spacing: 2 1/8''
• Bridge Pin Material: White Plastic
• Bridge Pin Dots: Abalone
• Pickguard: Tortoise Pattern
• Saddle: Compensated White Tusq
• Saddle Radius: 16"

Neck

• Neck Shape: Low Profile
• Neck Taper: Standard Taper
• Neck Material: Select Hardwood
• Neck Color: Dark Mahogany
• Finish Neck: Satin
• Scale Length: 25.4"
• Number of Frets Total: 20
• Neck Joins Body At: 14th Fret
• Fingerboard Material: Ebony
• Fingerboard Width at Nut: 1 11/16''
• Fingerboard Width at 12th Fret: 2 1/8''
• Fingerboard Inlay Style: Custom
• Fingerboard Inlay Material: Mother-of-Pearl
• Side Dots: White

Hardware

• Tuning Machines: Nickel Open Gear
• Knob: Butterbean
• Nut Material: Bone

Electronics

• Electronics: Yes
• Electronics Options: Fishman Gold Plus Natural I

Miscellaneous

• Case: Ply Hardshell with Embroidery
• Label: CFM IV & John Mayer Pre-Printed Signatures, Numbered in Sequence
  
• Left-Handed Availability: Yes
• Pleked: Yes

Why Buy From Tone Shop Guitars?

Tone Shop Guitars is the premier Martin dealer in the Dallas-Fort Worth area — and beyond. Our staff are players and enthusiasts who know these instruments inside and out, and we hand-inspect every guitar before it leaves our doors. When you buy a Martin from us, you're not just getting a great guitar — you're getting the expertise, the care, and the follow-through that a purchase like this deserves. Stop by any of our three DFW locations or shop online with confidence. We're here to help you find the right one.