MODEL: 116713 LN S/NO: "G599xxx" SERIES Box & Cert Dated Sept 2012. Chronometer in stainless steel case 40mm, original Rolex stainless steel and 18K solid yellow gold oyster bracelet. Graduated rotatable 18K yellow gold bezel fitted with black ceramic insert, 24-hour hand and independently adjustable 12-hour hand allow simultaneous use of any two time-zones. Case with shoulders protects the Rolex winding-crown. Waterproof to 100 m / 330 feet. Automatic movement 3186, sapphire crystal. 98% mint condition .