Unless it's a Citizen Cal.0100, which is good to ±1 second per year *and* solar ...

		jsheard 2 days ago \| parent \| context \| favorite \| on: Vacheron Constantin breaks the world record for mo... Unless it's a Citizen Cal.0100, which is good to ±1 second per year and solar powered. Just don't leave it in a dark drawer for too long :)

user3939382 2 days ago [–]

The solar batteries have a max discharge cycle too though.