Click on image to enlarge
ARNOLD & SON
This stunning new True Moon Timekeeper is powered by a world-first mechanism capable of keeping precise track of the true waxing and waning faces of the Moon. To achieve this unprecedented feat, it is calculated on the Moon’s exact synodic month of 29 days, 12 hours and 44 minutes.
Moonphase display (set through a pusher integrated in the case at 10 o’clock):
Evolves according to the true synodic period of the Moon (time between successive recurrences of the same phase period). This period of 29 days, 12 hours and 44 minutes, also called a synodic month, is depicted by 18 revolving discs.
Reveals the true waning and waxing faces of the moon as visible in the sky seen from the Northern Hemisphere. Date and centre sweep second hand.