A truly magnificent Christiaan van der Klaauw, triple calendar with moon phase. One of the very first models. This makes the watch a true collector's item. The watch runs excellently and has a good power reserve. The watch has very minor signs of wear here and there. But it can almost be described as like new. The photos are part of the description. Movement: Mechanical/Manual wind Case: Steel Diameter of case: 41 mm Glass: Sapphire Strap: Leather, brown (Original by C. v/d Klaauw) Buckle (original by C. v/d Klaauw) The watch will be sent well-packaged and by registered/insured post.