Service: Lagonda chronometer calibre AS1900/1 mitka88 6 years ago I thought it would be fun to see if this old chronometer rated Lagonda still could keep cosc time after a service;) The movement is in very good condition. The movement is cleaned and I start putting it back together. I don’t think this has ever been serviced before. The movement comes back together and is running fantastic! The positional variation is excellent. I think this still would pass the Cosc test today. This is a great watch in good condition. It’s available to buy in my store from only £250. Now thats good value for money;) Share this: Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook