A full service instrument shop specializing in sales and service of marine compasses. Suppliers of genuine replacement parts for Danforth, Aquameter, Ritchie, Kelvin White, Dirigo and Star compasses




4-1/2" Constellation Repair

Originally designed by Aquameter Compass Co. of New Jersey and marketed under the Aquameter Gemini name for many years this line was taken over by Rule Industries and incorporated into the Danforth Constellation Line.

The standard overhaul on the 4-1/2" compass is $183.00, which includes a new clear dome, gaskets, diaphram, bowl, oil ,repainting any painted parts and a two year warranty. Replacement parts to the lighting and return shipping are extra. If your compass is a binnacle mount compass the cost to repaint the binnacle and hood is $45.00 When shipping your compass to us please include your daytime telephone number in the box so we can contact when it arrives. The typical turnaround time from the date that we receive your approval to proceed with the repairs is usually two weeks.

When you receive your compass back from our shop it will look and perform like a new compass!


Rebuilt 4-1/2" Gemini
Rebuilt 4-1/2" Gemini

Regular price: $356.00
Sale price: $299.00