amanico[JLC Moderator]
371647
Ulysse Nardin Moonstruck Platinum: A wonder from the past.
Time flies... The Moonstruck was introduced in the catalog in 2013.
A heavy beast, in rose gold, even heavier in platinum, with its 46 mm case.
Here are two pictures I could take at that time,

And the official document which explains you how the watch works:

Have a good read.
Nicolas