Limited edition 100 pieces. The WRB is the most versatile of the RALF TECH diver’s models. Less imposing than its cousin the WRV it retains its spirit, the main characteristics and functions. Its diameter of 39mm will suit all wrists. Movement : Mechanical automatic winding. Case : Surgical steel 316L, Satin finish. Water-resistance : 200 M / 660 FT. Up to 44 hours. Steel 316L, luminescent surfaces SuperLuminova® C5. Sapphire, curved, anti-reflective coating, 2.5 mm thick. Rotating, unidirectional, 120 clicks (ISO 6425 standard). Screwed-on, with serial number engraving. 200 M / 660 FT.