While the new Casio G-SHOCK Ref. 6900-PT80 by John Mayer has sold out, you can still find similar watches and dupes available to buy online.
Hodinkee x G SHOCK x Online Ceramics Collab Info
Online Ceramics's First-Ever Watch Is Here
John Mayer Wants His G-Shock Collaborations to Help Democratize Watch Collecting
John Mayer x Hodinkee x Casio G-SHOCK Ref. 6900-PT80 for sale online
Casio G-SHOCK Ref. 6900 by John Mayer
John Mayer Recruited Ed Sheeran to Design a Bold New Watch
John Mayer Designs Casio G-SHOCK Ref 6900 Watch Inspired by His Childhood Keyboard
G-SHOCK Ref. 5600 by Online Ceramics for Hodinkee Should Be On Everyone's Holiday Wish List - Por Homme - Contemporary Men's Lifestyle Magazine
Casio G-SHOCK Ref. 6900 by John Mayer
in Hand Casio G-shock Ref. 6900 Wrist Watch by John Mayer X Hodinkee for sale online
Hodinkee x G SHOCK x Online Ceramics Collab Info
John Mayer x HODINKEE x G-SHOCK - The Truth About Watches
New Hodinkee G-Shock collaboration with Ed Sheeran is inspired by his 'Subtract' album
John Mayer HODINKEE Collabo: Where to Find Casio G-SHOCK Watch Online
WTS] Casio G-Shock John Mayer x Hodinkee LE DW6900 - Full kit : r/Watchexchange