ULTRA RARE 2020 Casio G-SHOCK ... John Mayer “Sob Rock” SIGNATURE WATCH / CLOCK x Hodinkee ... based on the Casio SK-5 (DW-6900JM20-8CR)

The Casio G-SHOCK Ref. 6900 x John Mayer — the watch that marked the beginning of Mayer’s journey into watch design during the Sob Rock era.

More than a collaboration, this piece reflects a specific creative moment where music, nostalgia and design philosophy intersect, with subtle references to the Casio SK-5 shaping its emotional DNA. Developed with Hodinkee, this DW-6900 became an instant modern icon.

Offered on consignment from its first and only owner, complete and collector-grade with original box and paperwork. Always carefully stored and in excellent condition as shown. Open to reasonable offers.

This is John Mayer’s first-ever watch collaboration — the starting point of everything that followed, and still the most sought-after G-SHOCK tied to his name. A Sob Rock-era artifact, wearable history, and a deeply personal design rooted in his musical identity.

Not just a watch. A first chapter.

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Available for WORLDWIDE shipping,