Vulcain introduced the Cricket alarm watch in 1947 with much fanfare and the model remains famous today. The original Cricket movement was Cal. 120, a basic movement but innovative because of the alarm function. Like most alarm movements, it features two barrels, one for timekeeping and another for the alarm gong. Cal. 120 was available with wither direct central seconds or small seconds.
Both the alarm and timekeeping barrels are wound by turning the 3 00 crown clockwise or counter-clockwise, respectively. A pusher at 2 00 enables and disables the alarm function, and allows the alarm time to be set using the main crown when fully depressed.