In addition to the striking mechanism, the watch has a fully integrated alarm with specific power reserve indicator.Alarm with its own gong and gradual striking Alarm position indicator: Silent/Strike
The alarm mechanism offers the possibility of choosing between a Westminster carillon and a simple strike of its own gong that has a different tone to the carillon. When, at the desired time, the alarm is triggered and starts to strike in a regular fashion, the energy in the alarm barrel winds down until the striking comes to a complete stop. The spring can then be rewound using the embedded button so that the alarm is ready for the next program.
The display offers a glimpse of the exclusive dual-alarm system created by Vacheron Constantin.
"C" for Westminster carillon or "N" for normal alarm.
When the Westminster carillon is selected, a choice of two striking patterns is offered: grande or petite sonnerie.
When the normal alarm is selected, the alarm sounds when a single gong is struck by a single hammer, in contrast to the gongs that play the Westminster melody.
The choice of alarm striking modes given to the wearer is a new feature by Vacheron Constantin that is unique to the Reference 57260 watch.