Product ID: 14760405 Nixon 51-30 Chrono High Polish White Watch Nothing else quite measures up. Named after the face size (51mm) and waterproof rating (30 ATM), the 51-30 Chrono is the OG oversized watch that birthed a whole style movement. It's the ultimate statement piece, but its pro-level chronograph and waterman functionality makes it so much more than a pretty face. Stainless Steel Imported Item cannot be shipped to P.O. Boxes