Brand new Roger Dubuis Easy Diver SED Tourbillon gents watch, Model # DBSE0185. Limited Edition 280pc. Titanium 48mm case. Titanium bezel. Skeleton dial with open one minute tourbillon display. Titanium crown. Titanium lugs. Manual wind movement, Caliber RD 02 SQ3. Rubber strap with titanium deploy buckle. Hours and minutes. Power reserve up to 60 hours. Water resistant up to 300 meters / 1000 feet. Tourbillon - compensates for differences in rate caused by a watch adopting different positions. The principle is to mount the balance and escapement in a rotating cage. The balance and escapement rotate around their common axis going through all positions to average out the errors. Tourbillon cages or platforms usually rotate once per minute but 4 minute and six minute tourbillons are also found. The Tourbillon complication is an extremely difficult accomplishment to achieve and generally demands a high premium.

　　subject to availability