Davis Mark 3 Full-Size Marine Training Sextant

The Davis Mark 3 is sometimes referred to as a "lifeboat" sextant, an inexpensive training model that's still taken sailors around the world despite its simplicity, proving genuinely useful gear doesn't have to be expensive.

It's full-sized and includes sunshades, giving genuine practice with a real sextant's size and feel rather than a toy-like model that wouldn't translate to using an actual navigation instrument.

It has no optical magnification to help find dim celestial bodies, making it best suited for training and daytime sun sights rather than serious night navigation, and it comes with an instruction booklet to get started.

• Inexpensive training sextant, full-sized
• Includes sunshades
• No optical magnification
• Instruction booklet included