Celestial Navigation/Oceans OICNW (OP LEVEL) MASTER 500/1600GRT (MGMT LEVEL)
This comprehensive course covers celestial navigation and oceanic operations for officers in charge of a navigational watch (OICNW) and Master 500/1600 GRT. It combines operational-level and management-level training, adhering to STCW (Standards of Training, Certification, and Watchkeeping) regulations.
.png)
Why Thousands of Mariners Choose Sea School?
Each year, over 7,500 students choose Sea School for their maritime training. We offer 30+ USCG-approved courses across in-person, online, and satellite formats, with training available at 6 locations nationwide. Team training is also available on-site or via satellite to meet company needs.
















This comprehensive course covers celestial navigation and oceanic operations for officers in charge of a navigational watch (OICNW) and Master 500/1600 GRT. It combines operational-level and management-level training, adhering to STCW (Standards of Training, Certification, and Watchkeeping) regulations.

Any applicant who has successfully completed Sea School x QMT's Oceans Navigation/Celestial Navigation (500/1600 GRT) (QUALMI-107) course will satisfy:
The Oceans Navigation examination requirements of:
- Navigation General: Oceans
- Navigation Problems: Oceans
For increasing the scope of an endorsement from near coastal to oceans for the following National Deck Officer Endorsements if completed within one year of application:
- Second or Third Mate of self-propelled vessels of unlimited tonnage
- Master or Mate of self-propelled vessels of less than 1600 GRT
- Master or Mate of self-propelled vessels of less than 500 GRT
- Master or Mate of self-propelled vessels of less than 200 GRT
- Master or Mate of Uninspected Fishing Industry Vessels; AND
- The Celestial Navigation training requirements of 46 CFR 11.309(a)(4)(viii) for an STCW endorsement as Officer in Charge of a Navigational Watch on vessels of 500 or more gross tonnage (ITC); AND
- The Celestial Navigation standards of competence required by 46 CFR 11.309(a)(3) and 11.319(a)(3); STCW Code Section A-II/1 and Table A-II/1, as amended 2010, meeting the National Assessment Guidelines from NVICs 12-14(Ch-5) and 02-18(Ch-3) Tasks 1.1.A, 1.1.B, 1.1.C, 1.1.D, 1.1.E, and 1.1.F.
Why Thousands of Mariners Choose Sea School?
Each year, over 7,500 students choose Sea School for their maritime training. We offer 30+ USCG-approved courses across in-person, online, and satellite formats, with training available at 6 locations nationwide. Team training is also available on-site or via satellite to meet company needs.
















Real-World Expertise
Excellence starts with a strong foundation. We believe in mastering fundamental skills, building confidence, and ensuring every mariner has the knowledge and expertise needed to succeed in their career.
Flexible Learning Options
True leadership is demonstrated through action. We foster a hands-on approach, where mariners learn by doing and gain real-world experience that prepares them for the challenges of the industry.
Career Advancement
In the maritime world, challenges are inevitable - but so are solutions. We encourage proactive thinking, problem-solving, and the courage to take initiative.
Industry-Recognized Certifications
We never settle for mediocrity. Whether in training, leadership, or problem-solving, we strive for the highest standards in everything we do.
A Strong Community & Industry Network
Success in the maritime industry requires a strong work ethic. We embrace a roll-up-your-sleeves mentality, knowing that real growth comes from effort and persistence.
Confidence & Leadership Development
Ttrue professionals must be ready to adapt. We believe in staying agile, embracing change, and continuously expanding our skills to meet new challenges.
We’ve developed comprehensive, engaging, and practical curriculum to set you up for success on the water
While the curriculum represented on the Sea School website is a general layout of course information, it is not the exact order in which lessons are taught.
A Simple 3-Step Process to Get Certified and Start Your Maritime Career
Choose Your Course
Pick the course that fits your experience level and sea time and select the available format that works for you (in-person, Zoom, or online).
Enroll & Prepare
Register online or at a Sea School location. Ensure you meet eligibility requirements and start reviewing the provided study materials.
Get Certified
After finishing the course, you will need to submit your application to the Coast Guard to receive your Merchant Mariner Credential (MMC).

What Our Clients Say
What We Provide:
What Students Need to Bring:

Advance your Maritime Career
Celestial Navigation Frequently Asked Questions
Officer in Charge of a Navigational Watch (OICNW): is the certification for a qualified mariner who can be responsible for a ship's navigational bridge watch.
Your Journey Begins Here – Get Certified & Get on the Water!
Helping thousands of mariners every year, Sea School is a leader in the maritime education space. Whether you are new to the industry or looking to add onto your Merchant Mariner Credential, find the courses right for you at Sea School.
