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Watch Martin’s meticulous repair of John Mayer’s OM-28JM acoustic

There’s something gentle and therapeutic about watching video footage of a beautiful instrument receiving a makeover, and Martin (opens in new tab)’s video of their custom shop restoration of John Mayer’s OM-28JM acoustic guitar (opens in new tab) is a classic of the genre.

The sense of calm exuded by the Martin luthier's is Attenborough-esque.

Sigh as the bridge is removed and cleaned up. Purr approvingly as the frets are pulled from the fingerboard and the African blackwood is given a gentle sanding before new frets are fitted and dressed . . . Silently cheer when the instrument is restrung and brought back up to concert pitch.

The Martin OM-28JM is surely deserving of such attention to detail. First built towards the tail-end of 2003, with a strictly limited run of 404 instruments, it is a collector’s item rarely seen in the wild outside of John Mayer shows. 

Featuring a solid Engelmann spruce top and East Indian rosewood back and sides, with herringbone binding, a mahogany neck and Sterling silver binding on the headstock and bridge, the OM-28JM is a stunning guitar. 

Luckily you can still pick up the OMJM John Mayer signature acoustic (opens in new tab). It might lack the Sterling silver and a few other details but it is nonetheless an immaculate Orchestra Model from Martin – and priced accordingly.

Jonathan Horsley has been writing about guitars and guitar culture since 2005, playing them since 1990, and regularly contributes to MusicRadar, Total Guitar and Guitar World. He uses Jazz III nylon picks, 10s during the week, 9s at the weekend, and shamefully still struggles with rhythm figure one of Van Halen’s Panama.

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