[apple82]

Originally Posted by Mercury2wo

Ha ha!! That is a stonking 57.5 mm diameter watch!

A special edition Montres de Aeronef watch released 4-5 years back using the legendary 5011K handwound movement.

Story goes that this chronometer movement was the most accurate EVER tested by the observatory in Nauchatel until the 60’s when this annual competition used to run. And this movement was thought to be lost during the quartz crisis.
Until one day, Zenith discovered a box of 400-odd movements in 2009-2010 and released a special limited edition.

Based on the serial numbers on the COSC certificates (checked with a couple of other WUS, Watchprosite forum members) of old deck chronometers with this movement, the movements were indeed 40-50 year old movements!!

Not wearable regularly - but definitely a collector’s piece!!

thanks for that info
HOWCOOL!