Nautical Instruments

While electronic navigation chart advances are an important milestone in the science of nautical navigation, many mariners carry on the traditions associated with navigation by plotting a position and a course on a paper nautical chart. They accomplish this task using traditional marine navigation tools, including: compasses, chart dividers, rulers, protractors, sextants, chart plotters, binoculars, chronometers, star finders, and more.

Most large commercial ships use electronic navigation methods as they are required under the SOLAS convention to use ECDIS as the primary means of navigation. However, many navigation officers and smaller, recreational vessels continue to work with traditional nautical charts to navigate and plot their courses using the same basic, yet ingenious, nautical tools used by ocean-sailing mariners for centuries. It is important that mariners remain knowledgeable on the use of these navigation tools in case the need arises to use paper nautical charts. It is good seamanship for mariners to know how to use these nautical tools work and to pass on that information to the next generation. 

High-quality modern nautical tools also make great gifts for anyone with a love of maritime history. Any sailor who uses traditional navigation techniques would appreciate receiving these items as a gift. 

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  • $49.95 $61.95
    This chart magnifier is the perfect aide in reading small print on charts, maps, and documents of any kind. The Brass Magnifier Chart Weight is a forged brass ring which encloses a 5x magnifying lens. The brass is brushed and lacquered so that it will not tarnish or show fingerprints. The bottom ...
  • $53.95
    The brass Clock Chart Weight is an excellent personal keepsake or corporate gift when customized by imprinting or engraving. It is a handsome addition to any desk or chart table. The brass Clock Chart Weight is a quartz clock set in a forged brass ring. It is brushed and lacquered so...
  • $29.95 $39.95
    This handsome optical-grade crystal glass magnifier features a compass rose making it perfect for use with nautical charts.   With crystal clarity and magnification of 4x, this magnifier enlarges small print on any task and is a welcome addition to desks or chart tables. The scratch resistant Cry...
  • $34.95 $44.95
    This black felt-lined mahogany finished wood box is an elegant way to present any of the Weems & Plath chart weights as a gift or award.
  • $44.95
     The Compass Chart Weight is a working liquid filled compass that is ideal for holding down charts on the boat or for use as an elegant paperweight on your desk. Constructed of a high-quality nickel-plated forged brass ring, this desk compass is lacquered so it will not tarnish or show finge...
  • $24.95 $30.95
    This compact GPS parallel rule is particularly suited for use on modern small chart tables. The primary purpose of the Paralock Plotter is to enable the transfer of GPS positions rapidly, easily and accurately to and from any paper chart. The Paralock Plotter features three unique design concept...