(1) If the buyer fails to perform any of his obligations under the contract or this Convention, the seller may:
(a) exercise the rights provided in articles 62 to 65;
(b) claim damages as provided in articles 74 to 77.
(2) The seller is not deprived of any right he may have to claim damages by exercising his right to other remedies.
(3) No period of grace may be granted to the buyer by a court or arbitral tribunal when the seller resorts to a remedy for breach of contract.