Liens de Chaumet, ref. W23670-01A and ref. W23671-01A
Chaumet New Liens collection
Chaumet Liens Watch
enGreenwich Mean Time (GMT)
frTemps moyen de Greenwich (TMG)
deMittlere Zeit von Greenwich
esTiempo medio de Greenwich (TMG)
Mean time at the meridian of the Royal Observatory in Greenwich, which was adopted as the universal meridian. GMT is a civil time beginning at midnight.