Scorpio on a Clock from Japan

The Scorpio on a Clock from Ginza, Tokyo, Japan, is courtesy of Wickedly Smart from Flickr. We see here the Scorpio glyph on the 11th place (house). The twelve 30-degree sectors (called “houses”)of the horoscope have different meanings. The same goes for the Zodiacal signs. Astrologers weigh these meanings in order to make their interpretations. It seems so simple to invent such an astrological clock (12 hours=12 signs=12 houses) – so why am I surprised to see that such a clock really exists?