Longines Master Collection Mens Watch Longines Master Collection 18ct yellow gold and stainless steel automatic mens watch. Silver dial, Diamond indicators, date, case diameter: 40mm, wrist size: 19.5cm, Swiss made. Ref# L2.793.5.97.7. With Longines two-tone bracelet and clasp. With FSA Certificate of Authenticity, Longines Diamond Certificate card and Longines box. 3 month FSA warranty (As new, Note: minor scratches on case and bracelet due to being display stock)