Nothing else quite measures up. Named after the face size (51mm) and water-resistant rating (30 ATM), Nixon's 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. - Crown and pushers located on the 9 o'clock side of the case instead of 3 o'clock to prevent ""wrist bite"" during active use - Uni-directional rotating bezel for an analog countdown timer - Six-hand chronograph with 24hr and second timer subdials. - Miyota Japanese quartz 6 hand with crown placement at 9 o'clock - 30 ATM/300m Water Resistant - Approx. Weight: 284.2g - Material: Stainless Steel - Colour: Black - Style: A083-5092-00