The G-SHOCK Ref. 6900-PT1 By John Mayer | HODINKEE,G-SHOCK Ref. 6900-PT1 By John Mayer,John Mayer G-SHOCK 6900-PT1 Men's Watch,John Mayer and G-Shock are Back at it with the Latest Hodinkee Limited Edition - Worn & Wound,Casio G-SHOCK Ref. 6900 by John Mayer | HODINKEE,