FC31 Frederique Constant Open Double Heart. Reference FC-310WHF2P6. Watch measures 34mm and is made from steel. Automatic movement caliber FC-310. Sapphire crystals on both sides of the case. Waterproof 6ATM or 60 meters. Functions are hours, minutes and sweep seconds. Dial is Mother Of Pearl (MOP) set with 8 diamond hour markers. This watch is fitted with the original black satin strap with steel folding clasp and a red inner side. Naturally this watch is complete with the original box and papers dated November 2015. A superb and elegant ladies watch. Will make a perfect gift!