This Rolex Daytona Cosmograph (ref 116520) is an unusually handsome watch. It is in a 39.5mm x 12.8mm SS screw back case with screw down crown and pushers, water resistant to 100 meters. The black dial has white gold trimmed baton markers and no date. This Rolex model has a unique heavy Oyster bracelet with polished center links and fliplock deployant clasp, long enough for a seven and a half inch wrist.