{"id":106744,"date":"2026-11-10T22:48:10","date_gmt":"2026-11-10T21:48:10","guid":{"rendered":"https:\/\/kart.no\/nautical-charts-and-navigation\/cassens-plath\/"},"modified":"2026-11-10T22:57:16","modified_gmt":"2026-11-10T21:57:16","slug":"cassens-plath","status":"publish","type":"page","link":"https:\/\/kart.no\/en\/nautical-charts-and-navigation\/cassens-plath\/","title":{"rendered":"Cassens & Plath \u2013 sextants and celestial navigation"},"content":{"rendered":"\n
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Cassens & Plath \u00b7 Bremerhaven \u00b7 Since 1902<\/span>

Cassens & Plath
Precision.
For life at sea.<\/h1>

German craftsmanship.
Measured against the horizon.<\/p>

Discover Cassens & Plath sextants and celestial navigation equipment. From CP Sailing to Horizon Ultra \u2013 precision instruments for navigating by the Sun and stars.<\/p>

Explore the sextants \u2193<\/a>The story behind the craftsmanship<\/a><\/div><\/div>
\"Cassens
An open horizon. A precise instrument. Your own observation.<\/figcaption><\/figure><\/section>\n
Founded in Bremen in 1902<\/span>Assembled, adjusted and tested by hand in Germany<\/span>13 sextants and a broad accessory range at Kart.no<\/span><\/div>\n
\"Detail
Precision in the details: the arc, the mechanics and the fine readings.<\/figcaption><\/figure>
From a captain\u2019s experience to an instrument maker\u2019s craft<\/span>

A history
rooted in seafaring.<\/h2>

Cassens & Plath was founded in Bremen in 1902 by Captain Tanne Janssen Cassens. Experience at sea shaped the business: navigators needed instruments they could trust.<\/p>

The Bremerhaven site opened in 1972. Here the tradition of precision nautical instruments continues, including sextants and magnetic compasses. Instruments are assembled, adjusted and tested by hand in Germany.<\/p>

At Kart.no you will find a broad selection of the company\u2019s sextants, from CP Sailing and Professional to Bobby Schenk, Polaris and Horizon Ultra. We also offer optics, observation equipment and protective cases.<\/p>

1902<\/strong>Captain Tanne Janssen Cassens establishes the business in Bremen.<\/span><\/div>
1972<\/strong>The company establishes its site in the port city of Bremerhaven.<\/span><\/div><\/div>

Read more about Cassens & Plath\u2019s history \u2197<\/a><\/p><\/div><\/section>\n