Natural Mother of Pearls crafted with Marcasites on 925 Silver. Plated with Rhodium. Movement by Myota - Silver Watches Quartz Movement by Citizen. Co. Ltd JAPAN. Battery lifespan: Approx. 2 years (Changeable at any watch dealers) Size: Bezel approx. 25mm Round Length: 17cm Customisation: Available in other gem stones. Watch Warranty within 5 yrs from date of purchase: 1. Watch Malfunction i.e. Needles Drop 2. 30m water resistant. Against water sip in Do not include wear & tear.