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

Click to enlarge6" Danforth  White Compass Repair

The 6" Constellation compass has been manufactured since 1947. It has been made under the Kelvin White,Wilfrid O. White, Danforth-White and Danforth brand names. The clear dome on the 6" Constellation measures 6-5/16" in diameter at the base of the dome. It was available in at least 4-5 different models, flush mount, binnacle mount (with or without a sliding door hood), binnacle mount with a skylight head, and a double mounting yacht bracket (pictured).

In January 2010 Viking Instruments purchased the entire inventory of Constellation parts as well as the tooling necessary to continue manufacturing replacement compass parts. Viking Instruments, Inc is now the exclusive manufacturer and distributer of Danforth parts and service.

The standard overhaul on the 6" Constellation is $395.00, which includes complete disassembly, cleaning, repainting of the bowl and powder coating the top ring, replacement clear dome, gaskets, diaphram, oil and a two year warranty. Replacement parts to the gimbals, lighting and return shipping are extra. Turn around time is typically two weeks from the time that we receive your approval to proceed. Be sure to include a daytime telephone number in the box with the compass so we can contact you as soon as your compass arrives.


6" Constellation6" Constellation6" Danforth Constellation with Channel Light after restoration in our repair shop.

6" Binnacle Mount Danforth Constellation Repair6" Binnacle Mount Danforth Constellation Repair
6 " Danforth Binnacle Repair6 " Danforth Binnacle Repair
6" Danforth Compass Repair6" Danforth Compass Repair
Click to enlarge6" Skylight Head Danforth Constellation Compass
6" Danforth, Kelvin-White Constellation Parts6" Danforth, Kelvin-White Constellation PartsOriginally designed in 1947 by Wilfrid Gordon White of the Kelvin White Co., the Constellation compass series was available in 5,6,7 and 8 inch "apparent card" sizes.The Kelvin White Co. became the Wilfrid O. White and Sons Company which was sold to Danforth in 1961. Danforth added a 4 inch Constellation to the line. Danforth was sold to Rule Industries in the 1980's. Rule Industries added a 4-1/2" Constellation to the line. The Constellation compasses are still made to this day.

To determine which size compass you have, measure the diameter of the clear dome. The Clear dome on the 6" Constellation measures 6-3/8" in diameter.The 6" Constellation compass takes approximately 70 ounces of compass oil to fill. Click on the schematic to enlarge the diagram. The key number in the diagram is the first number of the item number.

GETTING YOUR COMPASS REPAIREDGETTING YOUR COMPASS REPAIREDViking Compass Repair Service specializes in marine compass repair. We repair compasses manufactured from the early 1800's to present day marine compasses.

We are an authorized warranty repair station for most compass manufacturers, including but not limited to E.S.Ritchie, Danforth, Rule, C. Plath. We also repair compasses by: Aquameter, Star Compass Co, Marine Compass Co., Dirigo, Wilfrid O. White and Sons, Kelvin White, Wilcox Crittendon, John Bliss, Baker Lyman, Lionel

In January 2010 Viking Instruments purchased the entire inventory of Danforth and Aquameter compass parts as well as the tooling necessary to continue manufacturing replacement compass parts. Viking Instruments is the exclusive manufacture and distributer of Danforth and Aquameter compass parts and service.

If you are interested in getting an estimate to repair your compass. Pack it up carefully and ship it to;

Viking Instruments, Inc.

182 Summer St #158

Kingston MA 02364

Please be sure to include your name, address and phone number with the compass. We will contact you via telephone or email within 2-3 working days from receipt of your compass.

Most current production compasses can be repaired and be ready for return shipment less than two weeks of the date of customer approval.

If you wish to speak to someone in our shop concerning your compass you may call 781-585-2100 Monday- Thursday From 9:30-4:30 E.S.T.