Ref. 6900-PT1 By John Mayer – HODINKEE Shop,G-SHOCK Ref. 6900-PT1 By John Mayer,Casio G-SHOCK Ref. 6900 by John Mayer | HODINKEE,Introducing the Casio G-Shock Ref. 6900-PT80, a watch I designed in collaboration with @hodinkee and @gshock_us. Update: sold out. Thank you for your support and enthusiasm. I'm blown away. 🤍,John Mayer Is Back With Another G-Shock Collab | GQ