SG3813-1-HS2060-1 (Tourbillon watch) 2 hands with centre classic tourbillon(Centre the real 1 min.360 degree classic tourbillon)Accuracy : -10/+20 , -15/+25Running Time : 65 hrs After full windingBeats per hour : 21,600 per hrJewels : 19 jewelsCase: stainless steel IPG coating , 43mm Glass : sapphire crystale.Back:stainless steel with sapphire crystalCrown : stainless steel IPG coatingStrap: Genuine crocodial leather strap, 22mmWater Resistant:3ATM