Christiaan van der Klaauw, Nederlands, "Planetarium Joure", Cal. ETA 2824-2, 40 mm, circa 2000

A gentleman's important, astronomical and as new automatic wristwatch with the world's smallest planetarium - original box, operating instructions and setting pin
Case: 18k rose gold, glazed screw back, 18k rose gold buckle. Dial: silvered, engine-turned centre, Arabic numerals, centre seconds, heliocentric planetarium indicating the orbits of Mercury, Venus, Earth, Mars, Jupiter and Saturn around the Sun, two engine-turned subsidiary dials indicating date and month, blued Breguet hands. Movm.: gold rotorwind movement, engine-turned, escutcheon shaped cut-out with engraved decor, Glucydur balance, incabloc shock protection for balance, cam type fine adjusting device.