Ritchie Compasses provide accuracy from the inside out. When properly sized, installed and compensated a marine compass is the most important instrument on any boat. It will provide accurate, trouble-free heading references under the most adverse conditions without relying on electricity, radio signals or satellite communications. The most important criteria when selecting a compass are dial size and mounting style. Quality components aid accuracy, smooth response, stability and trouble-free operation. Modern technology makes Ritchie Compasses the World's Best Marine Compasses.

DirectiveForce Magnets. High Temperature Composite Construction for Extended Operating Range. Exclusive Built-in Green NiteVu Lighting. Scientifically Matched Sapphire Jewel & Hardened Steel Pivot Dial Movement. View Adjusts up to 30 degrees. Easily Installed, Fits Standard 2 1/16" (5. 50 cm) Instrument Hole. 2" (5. 08 cm) Direct Reading Dial.

Item Dimensions LxWxH: 4 x 4 x 6 inches. Item Weight: 0.4 Pounds. Brand: RITCHIE NAVI. Date First Available: August 25, 2003. Best Sellers Rank: #116,920 in Sports & Outdoors. Customer Reviews: 4.5 out of 5 stars 56 ratings 4.5 out of 5 stars. : B001AMLII0. Size: ?2-inch Dial. Included Components: ?Compass Owner's Documentation. Model Year: ?2017. Part Number: ?X-21BU. Manufacturer: ?Ritchie Navigation. Number of Items: ?1. Color: ?Black/Blue. Model Name: ?RitchieSport. Warranty Description: ?Manufacturer Warranty. Brand Name: ?RITCHIE NAVI. Item Weight: ?0.4 Pounds. Item Dimensions LxWxH: ?4 x 4 x 6 inches. Package Weight: ?0.2 Kilograms. Item Package Dimensions L x W x H: ?7.68 x 5.35 x 3.66 inches.