Christiaan versus Christiaan

Science Museum reconstructed the pioneer pendulum clock designed by Christiaan Huygens in 1656, as it was described and illustrated in his 1958's book Horologium.
Although Galileo had suggested the use of a pendulum to count the time, Huygen's design,
where the dial and hands of a clock were controlled by a pendulum, was the first truly practical pendulum clock. Huygens attached a pendulum to the gears of a clock.
The regular swing of the pendulum allowed the clock to achieve greater accuracy,
as the hands are turned by the falling weight, which releases the same amount of energy with each tick. (

Like Christiaan Huygens, Christiaan van der Klaauw is obsessed by the cosmos and all phenomena that take regularly place in the Universe. It was Huygens who discovered Saturn’s moon Titan, and also Huygens gave the correct explanation for the rings around Saturn.  Christiaan van der Klaauw is mostly known for his astronomical complications he builds into watches. He manufacturers the smallest working planetarium  Planetarium 2000, and he is so far the only watch manufacturer who can create a watch that shows when an eclipse of the Sun or Moon can occur,  Eclips 2001.

The watch Pendulum CH1 commemorates the 350th year of Huyghens invention.
The watch is limited to 350 pieces