John Mayer and G-Shock are Back at it with the Latest Hodinkee Limited Edition - Worn & Wound,G-SHOCK x John Mayer x Hodinkee 6900 PT-1 Watch | HiConsumption,54KB,Hodinkee and John Mayer Team Up with G-Shock for a Keyboard Inspired Ref 6900 - Worn & Wound,Casio G-SHOCK Ref. 6900-PT80 By John Mayer X Hodinkee X G-Shock | eBay