Attending the Social Impact summit in LA. Singer johnmayer was spotted wearing the titanium Vacheron Constantin Overseas Dual Time with a green dial and matching green rubber strap. Reference-7930V/210T 🎤⌚️ Price; £45,000 // $60,500 #CelebWatches #johnmayer #vacheron #vacheronconstantin #summit Like✔Comment 💬Tag Friends👤 Follow!