Act I - Expo 02. The Swiss national exhibition in 2002 is taking place around the Lakes of Neuchâtel, Bienne and Morat. Lucien Vouillamoz is raving tohis friends about the idea of designing a water watch, in the region of thethree lakes and Watch Valley.

The problem lies in how to replace the gravitational energy used in clepsydras or water clocks within a wearable, water-resistant wristwatch. The utopic idea was swiftly put on hold in the absence of a technical solution.