Victorinox Swiss Army Airboss Mechanical 241820. When the sky is calling, make sure you answer with reliability and precision. With these qualities in mind, we created the AirBoss Mechanical Watch. Its soundly engineered in honor of the brilliant aviators who lead the way up, up, up. And it's design is an homage to the beautifully functional aviator watches of the past. Every glance will send your heart soaring through the heavens.