To commemorate the 20th anniversary of John Mayer’s popular OM-28JM model, Martin collaborated again with John Mayer to offer this tasteful anniversary Orchestra Model. It exhibits the same versatility for today’s diverse contemporary musical styles and includes a unique label with Mayer’s electronic signature. This model will only be available through 2024, so make sure to check it out soon!

Specs
Body Size: 000-14 Fret
Finish Top: Gloss
Construction: Simple Dovetail Neck Joint
Back and Side Finish: Gloss
Bracing Pattern: X-Brace
Scale Length: 25.4″
Brace Shape: Scalloped
Fingerboard Width at Nut: 1 11/16”
Top Material: Engelmann Spruce
Neck Shape: Low Profile
Back Material: East Indian Rosewood
Neck Taper: Standard Taper
Side Material: East Indian Rosewood
Electronics: Yes
Electronics Options: Fishman Gold Plus Natural I
Top
Top Color: Platinum Gray Burst
Bridge Style: Modern Belly – Drop in Saddle
Binding: Antique White
Bridge String Spacing: 2 1/8”
Top Inlay Material: Bold Herringbone
Bridge Material: Ebony
Top Detail: None
Bridge Pin Material: White Plastic
Pickguard: Black Acrylic
Bridge Pin Dots: Abalone
Pickguard Inlay: None
Saddle: Compensated White Tusq
Rosette: Abalone with Multi-Stripe
Saddle Radius: 16″
Body
Brace Material: Spruce
Back and Sides Color: None
Brace Size: 5/16″
Back Detail: None
Back Purfling/Strip: Zig-Zag
Back Inlay Material: Multi-Stripe
Heelcap: Antique White
Side Detail: None
Endpiece: Antique White
Side Inlay Material: None
Endpiece Inlay: Multi-Stripe
Neck
Neck Material: Mahogany
Fingerboard Material: Ebony
Finish Neck: Satin
Fingerboard Width at 12th Fret: 2 1/8”
Neck Color: Dark Mahogany
Fingerboard Inlay Style: Custom
Number of Frets Total: 20
Fingerboard Inlay Material: Mother-of-Pearl
Neck Joins Body At: 14th Fret
Fingerboard Binding Material: None
Side Dots: White
Headstock
Headstock Shape: Solid with Square Taper and Diamond
Tuning Machines: Nickel Open Gear
Headplate Material: East Indian Rosewood
Knob: Butterbean
Headplate Logo Style: Script Old Style Overlay
Nut Material: Bone
Headplate Binding Material: None
Headplate Detail: None
Misc
Case: Ply Hardshell