Ulysse Nardin Marine Chronograph Annual Calendar Manufacture Watch 1532-150/40. UN-153 in-house manufacture automatic movement with permanent seconds and calendar month indicator at 9 o`clock position, 30 minute counter at 3 o`clock position and 12 hour counter at 6 o`clock position. Date window at 6 o`clock position. White lacquered dial with Roman hour markers. 18kt rose gold bezel set on a 43mm 18kt rose gold case. Sapphire crystal on top and exhibition case back. Water resistant to 100M. Black alligator strap with 18kt rose gold folding clasp.