Bracket Mount. Designer White. Designed for powerboats up to 24′. 2-3/4″ Direct Reading Dial. Internal green night illumination. Built-in compensators to easily adjust to deviation. Scientifically matched sapphire jewel and hardened steel pivot dial movement. Powerful DirectiveForce magnets for fast heading lock-on. Movable sun shield. High temperature construction. Bezels styled to match popular gauge packages. 574144 (F-50) and 574132 (F-50W) fits 3-3/4″ hole. 100% repairability. Exclusive 5-year Ritchie warranty.