This black gemstone watch is made with flat oval Snowflake Obsidian beads, faceted black glass accent beads, & pewter metal spacers. The Snowflake Obsidian beads are 0.4 inches in length & 0.3 inches in width. The watch face is 0.9 inches across, is water resistant, battery operated, & has a stainless steel back. The beads are strung on a very durable stretchy band, which lasts an average of 5-6 years before it needs to be restrung for a nominal fee. If it breaks within the first couple years, there is no charge to restring it. Measure your wrist with a flexible measuring tape or piece of non-stretchy string to determine your wrist size. Measure twice & make sure you start at 0 on the measuring tape. :) We can make the watch on a different watch face. Please message us for details. We can customize the watch to fit. The options in the variations menu are based on taking out or adding repetitions of the bead pattern. We can achieve different sizes by adding extra spacers or different size spacers. You can provide your wrist size in the personalization option & we will do our best to get the size as close to that as possible. If you would like to order more than what is available for quantity, please message us, we are happy to make more! Snowflake Obsidian Bracelet Watch, Very Durable Stretchy Band, Available in Multiple Sizes