Artikel 13

1. If a seaman shows to the satisfaction of the shipowner or his agent that he can obtain command of a vessel or an appointment as mate or engineer or to any other post of a higher grade than he actually holds, or that any other circumstance has arisen since his engagement which renders it essential to his interests that he should be permitted to take his discharge, he may claim his discharge, provided that without increased expense to the shipowner and to the satisfaction of the shipowner or his agent he furnishes a competent and reliable man in his place.
2. In such case, the seaman shall be entitled to his wages up to the time of his leaving his employment.