World Time Travelling Alarm Clock

An unusual mid 20^th Century Swiss centre seconds alarm in a gilt case for times around the world.  Alarm train with hammer striking the edge of the case.  Signed centre seconds dial with applied gilt batons, gilt hands with luminous markings.  Square gilt case in a black crocodile folding case.  Broad ring marked with cities around the world which can be rotated to allow the times to be read against the 24 hour chapter.  Two winding buttons below, one for the time, the other for the alarm.