Ulysse Nardin’s Black Sea Written by WatchTime, July 13, 2012 Ulysse Nardin unveiled a new addition to its Marine Diver collection, the Black Sea. It features a 42 hour power reserve indicator, oversized small seconds register, and a large date display. In keeping with its aquatic theme, the Black Sea’s dial and strap are decorated with a wave pattern. The case is water resistant to 200 meters. Receive all the news, features and reviews from WatchTime for free! Sign up to our free weekly newsletter and get all the news delivered to your inbox.