1750 8 Factory New masterpiece ROLEX Perpetual series RB2 Ultra-thin 90g counterweight version two-pin and semi-business model Rolex Perpetual 1908 size 39mm9.8mm Exclusive customized modified Chronergy escapement blue Syloxi balance spring Cal.7140 The self-winding movement has a K-gold stamped folding buckle that more closely restores the feel and wearing texture of a K-gold watch. S1 exquisitely recommended men’s two-hand semi-mechanical watch, rolex