ELECTRONIC TIMEPIECE OF THE MULTI-FUNCTION WATCH TYPE FOR NAVIGATIONAL AID, NOTABLY FOR A SPACE MISSION

摘要

The invention relates to an electronic timepiece of the multifunction watch type for navigational aid, notably for a space mission. More particularly, the invention relates to a watch with multiple displays and alarm smeans. It enables the setting, at any point in time, of a first date start of the mission (t0) with relation to a local time scale (T1) or the Universal Time (GMT), and the determination of a first corresponding time scale (MET). It enables the setting, at any point in time, of a second date, start (t'0) of one of the mission's phases with relation to the first time scale (MET) or to the Universal Time (GMT), and the determination of a second corresponding time scale (PET). It comprises means of setting, recording, calculating and analogue and digital viewing. The digital viewing means displays a negative time value (-) when the start date is located in the future and a positive time value (+) when this date has elapsed. It comprises five audio alarms, a chronometer and a "Timer".