By TLex Apart from the quirkiness of its design one of the peculiarities of the HELSON Gauge is its unique crown system. In order to set the time the crown must first be unlocked with a key. Once unlocked the time can be set by the same key and then relocked to ensure water-tightness of its case to 3'500m. The Gauge featured here is Peter Helson's; notice that the patina of the bronze has already started to develop nicely. Mine will arrive tomorrow!