Green Onyx 925 Sterling Silver Ring R1002194 13 Ring Size:6 afterglow) Calendar Full auto calendar (to afterglow) Calendar Full auto calendar (to year 2099) Indian Product Code ED649 Country of origin China Net Quantity 1 piece Time adjustment Bluetooth: Connects to a smartphone and automatically adjusts the time Smartphone Link feature Mobile link (Wireless linking using Bluetooth®) Apps CASIO WATCHES App connectivity feature Auto time adjustment Easy watch setting Approximately 300 world time cities Time & place Phone finder Compatible band size 150 to 205mm Light color LED:White Mute feature Button operation tone on off Other features 12 24 hour format Day display (days of the week selectable in six languages) Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents offering a timeless design that effortlessly complements both casual and refined summer wardrobes Measurement: Length: 21 mm X Width: 13 mm Available Size(s): 6