All TEUFEL motion jewelry is guaranteed against any manufacturing defect for 5 years from the date of purchase. TEUFEL, Inc., will not service under warranty any Swinger RingŪ if there is evidence of misuse, abuse, or damage. The warranty does not apply if the ring has been altered in any way (including custom work, improper sizing, or repairs) outside our factory by unauthorized jewelers. The maintenance instructions on this site as well as the warranty card that you received at time of purchase contains advice on the care and cleaning of your TEUFEL Swinger RingŪ. Please follow the advice carefully. Our warranty does not apply to damage due to the inappropriate use or treatment of your ring; nor does it cover faults due to the intervention of any person other than TEUFEL factory personnel.