Steel Breguet Marine Ref: 5817ST. Automatic Breguet caliber 517GG movement. Case diameter 39mm. Water resistant to 100 meters. 35 jewels, power reserve 65-hours, Silver dial in engine turned and silvered 18ct Gold, stepped central guilloche effect, printed with Roman numerals and minute track with luminescent dots on brushed outer, steel Breguet hands, oversized double date window at six. Black rubber strap with folding clasp. Box and papers dated November 2007. Our reference S20527.