"Black Or" slate grey
Chrome finish button fastening - Matching with the logo detail
Preserving this natural beauty around us has led to Rolex’s Perpetual Planet initiative
which was the first automatic mechanical chronograph and one of the first commercialised high frequency calibres
on racing driver René Dreyfus
URWERK UR-120, SPOCK "Black Or" slate greyCase Sandblasted titanium, sandblasted steel bezelDiameter : Width 47 mm; length 44 mm; thickness 15,8mm Curved sapphire crystal with anti reflective treatment Movement UR 20. 01, self winding Beryllium copper, grey PVD brass, gold PVD and black rhodium, anodized aluminum, ARCAP, titanium, LIGA processed nickel Circular and straight graining, sandblasting, ctes de Genve, polished screw heads 48 hours of power reserve Balance frequency: 28800 vph (4