This boat compass from Ritchie is packed with an array of excellent features, including a special reinforced bracket with Quadrantal correctors and exclusive built-in green NiteVu lighting. There are built-in, standard compensators and booster magnets on the base, plus hardened steel pivot and sapphire jewel movement. 

Key Features:

100% repairable.
3 3/4" (95mm) PowerDamp dial.
45 degree lubber lines.
5-year warranty.
Full internal gimbals.
Hardened steel pivot and sapphire jewel movement.
Movable sun shield.
Special reinforced bracket with quadrantal correctors.