The Insiders of Baume & Mercier: Episode #07 Season 02 - Testing the water-resistance!

More at http://www.baume-et-mercier.com http://www.baume-et-mercier.com/know-how/les-brenets Each Baume & Mercier watch has to be water-resistant. To make sure the watch is fully water-resistant we use a device that immerses the watch in water and depending on the model, recreates the pressure that the watch would experience in depth of the sea. Once this procedure is done, the watch is dried, placed on a heating plate and heated up to 45 degrees Celsisus. The crucial part of the water-restistance test comes now: we then put a small water drop on the crystal. If the watch is not water-resistant, condensation will appear in the inside of the watch.