Christiaan van der Klaauw Real Moon Tides Rose Gold CKRS1124

The tide indicator sits at 12 o'clock, just below the CvdK logo: waves in an aperture rise and fall with the tide, while a miniature moon near 6 o'clock shows the phase. Monochrome reported the tide display as a complication never seen in a wristwatch before. The CVDK7383 is self-winding with a twin barrel and a 96-hour power reserve, visible through a sapphire caseback. On the front, a silver guilloché dial carries Roman numerals and Breguet hands, and the case takes a 20 mm strap.

The Real Moon Tides Steel (CKRS3324) is the same 40 mm watch in stainless steel. The Real Moon Joure 40Y (CKRJ3384) keeps the size but moves to a blue dial in steel, limited to 40 pieces, and the Planetarium (CKPT7824) is a 40 mm white gold watch with a gem-set bezel.