All C4 Waterman products are warranted to the original owner against manufacturers’ defects in materials and workmanship for a period of one (1) year from the date of purchase. If a product failure is experienced due to a manufacturing or materials defect, we will repair or replace it without charge at our option. Damages due to negligence, improper use, accident, wherein the manufacturer is not at fault, will be repaired at a reasonable charge. Shipping costs will be assessed to the product owner at the discretion of the manufacturer. A copy of the original purchase receipt is required for all warranty claims.